:) transisiton

In item-info, the :) transitions from a liked to unliked are weird.

Look for the item-info component in the codebase, likely in a frontend directory. Examine the code handling the like/unlike transition, particularly any CSS or animation logic. The issue mentions a visual weirdness, so inspect the UI behavior and related styles. Check if there are existing tests for this component to understand the expected behavior.

索引モデルが issue の本文から書いたものです。