[lensoverlay] Fix overlapping searchbox and translate features.

Updates GANslate and close button for CSB. Removes more options button
as this will be implemented into the toast when CSB LE's.

Contextual Searchbox Enabled: https://screencast.googleplex.com/cast/NjI5NjU4OTQwMzQyMjcyMHw0NjA0MDEzYS1iMA

Contextual Searchbox Disabled:
https://screencast.googleplex.com/cast/NTQzODAzNjA0NDE1MjgzMnwzMWI0YzE0Zi03Zg

Change-Id: I50904e2cb6b8a716e8eae1bcc5766d05936656a3
Bug: 366027453
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5889789
Reviewed-by: Juan Mojica <juanmojica@google.com>
Commit-Queue: Nihar Majmudar <niharm@google.com>
Cr-Commit-Position: refs/heads/main@{#1360199}