Two fixes today:

• Kanji cards layout when no words are attached: for users who want to focus on kanji, the layout with space on the right side was distracting. Now kanji cards with no attached words use the "centered kanji" layout. That way, users who wish to focus exclusively on the kanji recall can do so.
  
  Note: if a word is present, you can just click / tap the word to pick another one. If no word is present then you have to click/tap the Dict button or use D shortcut (desktop) to open the Dictionary.

• Lack of an obvious "Close" button for the Dictionary dialog on smartphones (portrait view). Thanks to Nicolas for the report. Github issue #148