[lensoverlay] Allow homework action chip label to collapse.

Text elision on the label must be disabled for the label to collapse.
This is done implicitly when a chip is set up for animation, but since
the homework chip is not, we must explicitly disable text elision.

Demo: http://shortn/_YBZqz1isIW

Bug: 424575234
Change-Id: Ief6c1b76254ae5983bbf24dab2bfe8e9ecc22ad5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6778409
Reviewed-by: Tom Lukaszewicz <tluk@chromium.org>
Commit-Queue: Bryan Nguyen <nguyenbryan@google.com>
Cr-Commit-Position: refs/heads/main@{#1490510}