type: added
area: config

- Added a dedicated Configuration window with launcher entry points via `subminer --config` and `subminer config`.
- Fixed the Configuration window preload so launcher-opened windows can initialize even when Electron sandboxing is active.
- Kept config-window startup lightweight by skipping AniList token refresh and automatic update polling.
- Marked safe live config options in the Configuration window and expanded hot reload for stats keys, logging level, Jimaku, Subsync, YouTube language defaults, Anki media/sentence/misc field mappings, sentence card model, and selected Anki annotation/runtime options.
- Hid AI and translation fields from the Configuration window while keeping them supported in config files.