feat(config): reorganize settings window and move annotation colors to subtitleStyle

- Reorganize Configuration window into Appearance, Behavior, Anki, Input, and Integration sections
- Add AnkiConnect-backed deck, note-type, and field pickers in the Anki section
- Add click-to-learn keybinding controls
- Move known-word and N+1 highlight colors to subtitleStyle.knownWordColor / subtitleStyle.nPlusOneColor; legacy ankiConnect.knownWords.color and ankiConnect.nPlusOne.nPlusOne keys still accepted with deprecation warnings
- Add deckNames, modelNames, modelFieldNames, and fieldNamesForDeck methods to AnkiConnectClient
- Mark discordPresence.presenceStyle as an enum in the config registry

src/types/config.ts

@@ -212,10 +212,8 @@ export interface ResolvedConfig {
       addMinedWordsImmediately: boolean;
       matchMode: NPlusOneMatchMode;
       decks: Record<string, string[]>;
-      color: string;
     };
     nPlusOne: {
-      nPlusOne: string;
       minSentenceWords: number;
     };
     behavior: {