Collection of minor localization-related problems

[User670]

I don't feel like creating issues for them separately

also, 1. I'll not put missing translations here, only issues with existing translations (wrong/questionable translations, text too long/unsupported, etc), and 2. I'll delete fixed issues from here.

• French: also, is the colon used like this?
  
• Traditional Chinese. Regarding "Line" (as in the thing you clear), current traditional Chinese localization retained the Mainland name of 行. In Tetris Effect, lines are referred to as 层 in Traditional Chinese; while in Puyo Puyo Tetris 2, whenever it mentions "clearing lines", it always used the English word "LINE", and sometimes refers to "a row of blocks" as 列. Using 行 might be not exactly correct in Taiwan, for 行 and 列 have oppposite meanings in Mainland and in Taiwan. Maybe consider using 层 to refer to lines instead?

[MrZ626]

close #538