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/overrides/config/badoptimizations.txt

@@ -0,0 +1,17 @@
+enable_lightmap_caching: true
+lightmap_time_change_needed_for_update: 80
+enable_sky_color_caching: true
+skycolor_time_change_needed_for_update: 20
+enable_debug_renderer_disable_if_not_needed: true
+enable_particle_manager_optimization: true
+enable_toast_optimizations: true
+enable_sky_angle_caching_in_worldrenderer: true
+enable_entity_renderer_caching: true
+enable_block_entity_renderer_caching: true
+enable_entity_flag_caching: true
+enable_remove_redundant_fov_calculations: true
+enable_remove_tutorial_if_not_demo: true
+show_f3_text: false
+ignore_mod_incompatibilities: false
+log_config: false
+config_version: 4