Update to 1.13.0
    
    - Make switch to pinyin mode also happen immediately even
      when the preedit is not empty (for consistency)
    - Make rolling the mouse wheel in the candidate area of the lookup table work
    - Commit English input and then switch into direct mode
      (Resolves: https://github.com/kaio/ibus-table/issues/68)
    - Apply a couple modes immediately when changed
    - Add a dark theme option
      (Resolves: https://github.com/kaio/ibus-table/issues/67)
    - Show all the tabkeys when using wildcards
    - Remove Python2 compatibility stuff
    - Start adding some type hints
    - Update translations from Weblate (update for de, ja, tr, uk, zh_CN)