Merge bitcoin#26142: Use PACKAGE_NAME in messages rather than hardcoding "Bitcoin Core"

b147322 Use `PACKAGE_NAME` in messages rather than hardcoding "Bitcoin Core" (Hennadii Stepanov)

Pull request description:

  Usually, we do not hardcode "Bitcoin Core" in the user-faced messages.

  See:
  - bitcoin#18646
  - bitcoin#19282

  Also grammar has been improved -- singular instead of plural.

ACKs for top commit:
  jarolrod:
    ACK b147322

Tree-SHA512: b135c18703dfdd7b63d4cb27d1ac48f6a9dbf69382142ae381f33bf561cbf57477a11d1c73263aa834f705206d7dd5716df2523d38ed0d4cfec8babc38bb017a

Author: MacroFake

src/init.cpp

@@ -1710,7 +1710,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
 
     const auto BadPortWarning = [](const char* prefix, uint16_t port) {
         return strprintf(_("%s request to listen on port %u. This port is considered \"bad\" and "
-                           "thus it is unlikely that any Bitcoin Core peers connect to it. See "
+                           "thus it is unlikely that any peer will connect to it. See "
                            "doc/p2p-bad-ports.md for details and a full list."),
                          prefix,
                          port);

src/qt/forms/optionsdialog.ui

@@ -286,7 +286,7 @@
             <item>
              <widget class="QLineEdit" name="externalSignerPath">
               <property name="toolTip">
-               <string>Full path to a Bitcoin Core compatible script (e.g. C:\Downloads\hwi.exe or /Users/you/Downloads/hwi.py). Beware: malware can steal your coins!</string>
+               <string>Full path to a %1 compatible script (e.g. C:\Downloads\hwi.exe or /Users/you/Downloads/hwi.py). Beware: malware can steal your coins!</string>
               </property>
              </widget>
             </item>

src/qt/optionsdialog.cpp

@@ -91,7 +91,9 @@ OptionsDialog::OptionsDialog(QWidget *parent, bool enableWallet) :
         ui->thirdPartyTxUrls->setVisible(false);
     }
 
-#ifndef ENABLE_EXTERNAL_SIGNER
+#ifdef ENABLE_EXTERNAL_SIGNER
+    ui->externalSignerPath->setToolTip(ui->externalSignerPath->toolTip().arg(PACKAGE_NAME));
+#else
     //: "External signing" means using devices such as hardware wallets.
     ui->externalSignerPath->setToolTip(tr("Compiled without external signing support (required for external signing)"));
     ui->externalSignerPath->setEnabled(false);