Some tweaks today to the flashcard layout, and fixes.

Japanese words in the prompt do not break. This one's a small improvement if you use Japanese text in the custom keywords (the flashcard prompt). In Japanese line breaks can occur between any two characters, but I thought it would be more readable to avoid wrapping in the middle of a Japanese word.

Fix #357 Long keywords wrapping. Only if you use a long keyword, it could happen sometimes that the keyword is overlapped by the Edit Flashcard button (top right of the card). This no longer happens.

Keyword overlapping kanji. In some instances a long keyword spanning 2-3 lines would overlap the kanji. Relatively uncommon, but this should no longer happen.

Example word text scaling. Minor thing, the text scales down a little bit if the Japanese compound is long, so the compound and reading fits on one line.