replace PSBT text in codebase with Proposed transaction or Transaction

diff --git a/src/seedsigner/gui/screens/psbt_screens.py b/src/seedsigner/gui/screens/psbt_screens.py
index 9037fc5..4a65555 100644
--- a/src/seedsigner/gui/screens/psbt_screens.py
+++ b/src/seedsigner/gui/screens/psbt_screens.py
@@ -29,7 +29,7 @@ class PSBTOverviewScreen(ButtonListScreen):
 
     def __post_init__(self):
         # Customize defaults
-        self.title = _("Review PSBT")
+        self.title = _("Review Transaction")
         self.is_bottom_list = True
         self.button_data = [ButtonOption("Review details")]
 
@@ -478,7 +478,7 @@ class PSBTMathScreen(ButtonListScreen):
 
     def __post_init__(self):
         # Customize defaults
-        self.title = _("PSBT Math")
+        self.title = _("Transaction Math")
         self.button_data = [ButtonOption("Review recipients")]
         self.is_bottom_list = True
 
@@ -763,7 +763,7 @@ class PSBTOpReturnScreen(ButtonListScreen):
 class PSBTFinalizeScreen(ButtonListScreen):
     def __post_init__(self):
         # Customize defaults
-        self.title = _("Sign PSBT")
+        self.title = _("Sign Transaction")
         self.is_bottom_list = True
         super().__post_init__()
 
diff --git a/src/seedsigner/views/psbt_views.py b/src/seedsigner/views/psbt_views.py
index 5b4219f..2bee52d 100644
--- a/src/seedsigner/views/psbt_views.py
+++ b/src/seedsigner/views/psbt_views.py
@@ -22,7 +22,7 @@ class PSBTSelectSeedView(View):
         # multisig where we want to sign with more than one key on this device.
         if not self.controller.psbt:
             # Shouldn't be able to get here
-            raise Exception("No PSBT currently loaded")
+            raise Exception("No transaction currently loaded")
 
         if self.controller.psbt_seed:
              if PSBTParser.has_matching_input_fingerprint(psbt=self.controller.psbt, seed=self.controller.psbt_seed, network=self.settings.get_value(SettingsConstants.SETTING__NETWORK)):
@@ -169,7 +169,7 @@ class PSBTUnsupportedScriptTypeWarningView(View):
         selected_menu_num = self.run_screen(
             WarningScreen,
             status_headline=_("Unsupported Script Type!"),
-            text=_("PSBT has unsupported input script type, please verify your change addresses."),
+            text=_("Transaction has unsupported input script type, please verify your change addresses."),
             button_data=[ButtonOption("Continue")],
         )
         
@@ -191,7 +191,7 @@ class PSBTNoChangeWarningView(View):
             WarningScreen,
             # TRANSLATOR_NOTE: User will receive no change back; the inputs to this transaction are fully spent
             status_headline=_("Full Spend!"),
-            text=_("This PSBT spends its entire input value. No change is coming back to your wallet."),
+            text=_("This transaction spends its entire input value. No change is coming back to your wallet."),
             button_data=[ButtonOption("Continue")],
         )
 
@@ -463,17 +463,17 @@ class PSBTAddressVerificationFailedView(View):
     def run(self):
         if self.is_multisig:
             # TRANSLATOR_NOTE: Variable is either "change" or "self-transfer".
-            text = _("PSBT's {} address could not be verified from wallet descriptor.").format(_("change") if self.is_change else _("self-transfer"))
+            text = _("Transaction's {} address could not be verified from wallet descriptor.").format(_("change") if self.is_change else _("self-transfer"))
         else:
             # TRANSLATOR_NOTE: Variable is either "change" or "self-transfer".
-            text = _("PSBT's {} address could not be generated from your seed.").format(_("change") if self.is_change else _("self-transfer"))
+            text = _("Transaction's {} address could not be generated from your seed.").format(_("change") if self.is_change else _("self-transfer"))
         
         self.run_screen(
             DireWarningScreen,
-            title=_("Suspicious PSBT"),
+            title=_("Suspicious Transaction"),
             status_headline=_("Address Verification Failed"),
             text=text,
-            button_data=[ButtonOption("Discard PSBT")],
+            button_data=[ButtonOption("Discard Transaction")],
             show_back_button=False,
         )
 
@@ -515,7 +515,7 @@ class PSBTOpReturnView(View):
 class PSBTFinalizeView(View):
     """
     """
-    APPROVE_PSBT = ButtonOption("Approve PSBT")
+    APPROVE_PSBT = ButtonOption("Approve Transaction")
 
     
     def run(self):
@@ -583,7 +583,7 @@ class PSBTSigningErrorView(View):
         # Just a WarningScreen here; only use DireWarningScreen for true security risks.
         selected_menu_num = self.run_screen(
             WarningScreen,
-            title=_("PSBT Error"),
+            title=_("Transaction Error"),
             status_icon_name=SeedSignerIconConstants.WARNING,
             status_headline=_("Signing Failed"),
             text=_("Signing with this seed did not add a valid signature."),
diff --git a/src/seedsigner/views/scan_views.py b/src/seedsigner/views/scan_views.py
index 54097c3..af5883d 100644
--- a/src/seedsigner/views/scan_views.py
+++ b/src/seedsigner/views/scan_views.py
@@ -171,8 +171,8 @@ class ScanView(View):
 
 
 class ScanPSBTView(ScanView):
-    instructions_text = _mft("Scan PSBT")
-    invalid_qr_type_message = _mft("Expected a PSBT")
+    instructions_text = _mft("Scan Transaction")
+    invalid_qr_type_message = _mft("Expected a transaction")
 
     @property
     def is_valid_qr_type(self):
diff --git a/src/seedsigner/views/seed_views.py b/src/seedsigner/views/seed_views.py
index e35c5b8..8093318 100644
--- a/src/seedsigner/views/seed_views.py
+++ b/src/seedsigner/views/seed_views.py
@@ -524,7 +524,7 @@ class SeedElectrumMnemonicStartView(View):
     Views for actions on individual seeds:
 ****************************************************************************"""
 class SeedOptionsView(View):
-    SCAN_PSBT = ButtonOption("Scan PSBT", SeedSignerIconConstants.QRCODE)
+    SCAN_PSBT = ButtonOption("Scan transaction", SeedSignerIconConstants.QRCODE)
     VERIFY_ADDRESS = ButtonOption("Verify addr")
     EXPORT_XPUB = ButtonOption("Export xpub")
     EXPLORER = ButtonOption("Address explorer")
@@ -2077,7 +2077,7 @@ class LoadMultisigWalletDescriptorView(View):
 
 
 class MultisigWalletDescriptorView(View):
-    RETURN = ButtonOption("Return to PSBT")
+    RETURN = ButtonOption("Return to transaction")
     VERIFY_ADDR = ButtonOption("Verify addr")
     ADDRESS_EXPLORER = ButtonOption("Address explorer")
     OK = ButtonOption("OK")