[typo] Toggle auto right rotation

[Former user]

at Settings -> Edit commands

'Toggle auto rithg rotation' -> 'Toggle auto right rotation'

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By the way, thanks for developing this neat app. might be the best comics viewer I ever used.

[Ito Mitsuhiro]

誤字修正 (fixed #1133, #1147, #1148)

→ <<cset c0eb17b07910>>