change format for mod jars

- remove raw jars
- replace with modrinth.index.json
=> + save storage space and network bandwidth
=> - building is now more complicated

client/minecraft/options.txt

@@ -1,17 +0,0 @@
-version:3465
-enableVsync:true
-fullscreen:true
-fov:0.5
-renderDistance:12
-simulationDistance:5
-maxFps:260
-graphicsMode:0
-resourcePacks:["vanilla","fabric","continuity:default","file/fancy.zip","file/3D.zip","file/utility.zip"]
-syncChunkWrites:false
-key_key.saveToolbarActivator:key.keyboard.unknown
-key_key.loadToolbarActivator:key.keyboard.unknown
-key_key.mute_microphone:key.keyboard.unknown
-key_key.hide_icons:key.keyboard.unknown
-key_key.voice_chat_group:key.keyboard.unknown
-soundCategory_master:0.4
-soundCategory_music:0.1