Added some stuff

[Ryochobi]

I vibe coded this because this wasn't working with my custom IIDX controller using Arduino Leonardo PCB. I'm assuming this would make it work for other non-recognized PCBs as well.

• Add persistent Korean and English localization for menus, dialogs, settings, logs, and chatter UI. (I don't understand Korean, I'm sorry)
• Added Auto-Detect in Settings which supports custom mappings for keys & turntable input.
• Add README menu with localized OBS Browser Source setup instructions (Instructions confusing, dick got stuck in fan)
• Add independent container background color and transparent-background override (I hate black)
• Make browser widgets reconnect to the WebSocket server automatically. (It was not recognizing input initially once it was loaded as Browser Source loading http://localhost:8080/widget in OBS, I assume this would fix it)

Things to test:

• Please test whether functionalities still work the same for Phoenixwan, BMS & FP7 controllers.

Things I'd like to do:

• PMS-mode maybe?
• Custom keypress lighting color similar to Rag's overlay

Coldlapse goated song btw

[Coldlapse]

Thank you so much for your contribution. I am currently busy with my personal job search, so I haven't been able to actively maintain this project since it is already somewhat established. I will do my best to review and merge your PR, along with another community member's PR from last year, by the end of this year.

[Ryochobi]

It's all cool. Just wanted to make sure my changes were isolated enough so existing functionalities still work properly.