Minor UI Enhancement for keyboard move input box outline and 'a' in Analysis Board

[haisu2]

Links:
https://lichess.org/FyzvjQ2h
https://lichess.org/analysis

Outline of the move input box basically has no gap with 'a' below the a1 rook and board
Suggestion is to add some more pixels between them. I understand this is the most "not a problem" of all problems, but if it can be fixed with little time it would be greatly appreciated.

Screenshots
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