WordCensor: 3 censor modes (Grawlix / Replace / Alternative) and tidier UI

[niksedk]

Summary

• Engine refactored to take a CensorOptions { Mode, Replacement, ColorRed } object.
• Three modes:
  • Grawlix — existing behaviour: mask first ~50% with #@!?$%&.
  • Replace with text — replace the whole match with a user-editable string (default [censored]).
  • Random alternative word — swap with another word from the bad-word list itself. Rough case pattern is preserved (FUCK → DAMN, Fuck → Damn).
• UI gets a 'How should offensive words be replaced?' card with the 3 modes as radio buttons, the replacement text box inline with its radio, and the highlight-in-red checkbox tucked into the same card. Window grew to 780x640.
• Settings now persists mode + replacement + colorRed (was just colorRed); older settings still load with sensible defaults for missing fields.

Test plan

• Run on a subtitle containing offensive words; verify all 3 modes produce visibly different output in the preview.
• Toggle modes — preview updates immediately, line selection (include/exclude) is preserved across re-builds.
• Edit the replacement string with Replace mode active — preview re-renders on each keystroke.
• Toggle 'Highlight in red' — replacements wrap in <font color="#ff0000">…</font>.
• Close & reopen the plugin — last-used mode + replacement string + colour flag are restored.
• Verify Alternative mode doesn't loop forever even on a bad-word list of size 1 (degenerate case returns the original).

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