[settings,qt] merge of "disable controller applet" toggle with "controller applet mode" picker (#4498)

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-------------------
Small good simplification to nuke a toggle which costed me almost an entire day of work when fixing controller applet issues:

There were two settings related to Controller applet:
-"disable controller applet", which is a boolean toggle;
-"controller configuration" applet mode, which is a "Real"/"Custom" picker;

All i did was to nuke the toggle and add a third option "Disabled" to the picker.
Users which used the disable toggle will have to pick Disabled;
Real/Custom settings wont be affected since their indexes remains.
All options tested against diablo 3. All working as intended.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4498
Reviewed-by: lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/qt_common/config/shared_translation.cpp

@@ -342,9 +342,6 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent) {
               "it bypasses such prompts and directly exits the emulation."));
     INSERT(UISettings, hide_mouse, tr("Hide mouse on inactivity"),
            tr("Hides the mouse after 2.5s of inactivity."));
-    INSERT(UISettings, controller_applet_disabled, tr("Disable controller applet"),
-           tr("Forcibly disables the use of the controller applet in emulated programs.\n"
-              "When a program attempts to open the controller applet, it is immediately closed."));
     INSERT(UISettings, check_for_updates, tr("Check for updates"),
            tr("Whether or not to check for updates upon startup."));
 
@@ -380,6 +377,7 @@ std::unique_ptr<ComboboxTranslationMap> ComboboxEnumeration(QObject* parent) {
                           {
                               PAIR(AppletMode, HLE, tr("Custom frontend")),
                               PAIR(AppletMode, LLE, tr("Real applet")),
+                              PAIR(AppletMode, Disabled, tr("Disabled")),
                           }});
 
     translations->insert({Settings::EnumMetadata<Settings::SpirvOptimizeMode>::Index(),

src/qt_common/config/uisettings.h

@@ -127,8 +127,6 @@ struct Values {
     Setting<bool> hide_mouse{
         linkage, true, "hideInactiveMouse", Category::UiGeneral, Settings::Specialization::Default,
         true,    true};
-    Setting<bool> controller_applet_disabled{linkage, false, "disableControllerApplet",
-                                             Category::UiGeneral};
     // Set when Vulkan is known to crash the application
     bool has_broken_vulkan = false;