[desktop] Add icon-only mode to grid and improve design (#3485)

- Move Game Icon Size to the main toolbar. It's cleaner that way
- Add a "Show Game Name" toggle that does as it says. Disabling it
  basically creates an "icons-only" mode. Useful for controller-only
  nav with big icons (TODO: maybe make a 192 size?)
- Fixed a crash with controller nav. Oops
- Rounded corners of the game icon in grid mode
- Fixed the scroll bar creating extra clamping range on the grid icons
- Item can be deselected if user clicks on the blank space outside of the view

As a bonus fixed a crash on mod manager

Future TODOs for design:
- [ ] Row 1 type. Not sure what to do here tbh.
- [ ] Move around game list settings in configure_ui to make it clear
  that nothing there affects the grid view.
- [ ] 192x192 size? 256 feels too big on my 1440p screen whereas 128
  feels too small.
- Set text space as a function of fontMetrics.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3485
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: Maufeat <sahyno1996@gmail.com>

src/yuzu/configuration/configure_per_game_addons.cpp

@@ -161,14 +161,14 @@ void ConfigurePerGameAddons::InstallMods(const QStringList& mods) {
     }
 }
 
-void ConfigurePerGameAddons::InstallModPath(const QString& path) {
-    const auto mods = QtCommon::Mod::GetModFolders(path, {});
+void ConfigurePerGameAddons::InstallModPath(const QString& path, const QString &fallbackName) {
+    const auto mods = QtCommon::Mod::GetModFolders(path, fallbackName);
 
     if (mods.size() > 1) {
         ModSelectDialog* dialog = new ModSelectDialog(mods, this);
         connect(dialog, &ModSelectDialog::modsSelected, this, &ConfigurePerGameAddons::InstallMods);
         dialog->show();
-    } else {
+    } else if (!mods.empty()) {
         InstallMods(mods);
     }
 }
@@ -194,7 +194,7 @@ void ConfigurePerGameAddons::InstallModZip() {
 
     const QString extracted = QtCommon::Mod::ExtractMod(path);
     if (!extracted.isEmpty())
-        InstallModPath(extracted);
+        InstallModPath(extracted, QFileInfo(path).baseName());
 }
 
 void ConfigurePerGameAddons::changeEvent(QEvent* event) {