Fix a crash, update build system and frontend

Plugin library:

• Fixed a long-standing crash which would rarely happen when the game engine allocates more space for textures
• Fixed an issue where creating a browser with the custom JS parameter would sometimes corrupt the javascript
• For browsers created by plugins, added support for the following file types: .ttf, .ogx, .htm, .json, .xml, .zip, .gz, .tar, .7z, .rar, .bz, .bz2

Launcher:

• Changed build system for greater compatibility with packaging systems (specifically Fedora) (#164, #165, #166)
• Frontend updated to svelte 5 (#172) - this shouldn't affect the user experience apart from slightly better performance, but please report any issues
• Switched to wine-staging instead of umu-launcher for OSRS official client due to multiple stability issues (e.g. #173)
• Flatpak - fixed an issue where application data for the OSRS official client wasn't saved between runs of Bolt