[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/frontend_common/mod_manager.cpp

@@ -18,10 +18,10 @@ std::vector<std::filesystem::path> GetModFolder(const std::string& root) {
 
     auto callback = [&paths](const std::filesystem::directory_entry& entry) -> bool {
         const auto name = entry.path().filename().string();
-        static constexpr const std::array<std::string, 5> valid_names = {"exefs",
-                                                                         "romfs"
-                                                                         "romfs_ext",
-                                                                         "cheats", "romfslite"};
+        static const std::array<std::string, 5> valid_names = {"exefs",
+                                                               "romfs"
+                                                               "romfs_ext",
+                                                               "cheats", "romfslite"};
 
         if (std::ranges::find(valid_names, name) != valid_names.end()) {
             paths.emplace_back(entry.path().parent_path());