Enable access key underline of menu bar items when focused

* Fixes #7325

Author: droidmonkey

share/translations/keepassxc_en.ts

@@ -5561,10 +5561,6 @@ Are you sure you want to continue with this file?</source>
         <source>&amp;Tools</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <source>View</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>Theme</source>
         <translation type="unfinished"></translation>
@@ -6230,6 +6226,10 @@ Expect some bugs and minor issues, this version is meant for testing purposes.</
         <source>E&amp;xpire Entry…</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>&amp;View</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>ManageDatabase</name>

src/gui/MainWindow.ui

@@ -373,7 +373,7 @@
    </widget>
    <widget class="QMenu" name="menuView">
     <property name="title">
-     <string>View</string>
+     <string>&amp;View</string>
     </property>
     <widget class="QMenu" name="menuTheme">
      <property name="title">

src/gui/styles/base/BaseStyle.cpp

@@ -29,6 +29,7 @@
 #include <QFile>
 #include <QHeaderView>
 #include <QListView>
+#include <QMenuBar>
 #include <QPainter>
 #include <QPainterPath>
 #include <QPoint>
@@ -4680,7 +4681,15 @@ int BaseStyle::styleHint(StyleHint hint,
     case SH_WindowFrame_Mask:
         return 0;
     case SH_UnderlineShortcut: {
-        return false;
+#if defined(Q_OS_WIN) or defined (Q_OS_LINUX)
+        // Only show underline shortcuts if the user focused with ALT (Win/Linux only)
+        auto mb = qobject_cast<const QMenuBar*>(widget);
+        if (mb && !mb->hasFocus()) {
+            return 0;
+        }
+#endif
+        // Let Qt handle this for platform specific behavior
+        break;
     }
     case SH_Widget_Animate:
         return 1;