Squashed 'bundle/chat/' changes from 92458ba..62dce30

62dce30 css update for textarea and button

git-subtree-dir: bundle/chat
git-subtree-split: 62dce30fa70c939a6fef91e371f634b45b84284e
Merge commit 'c4bcdfc214f7691a2684a5754d64e98c923c5cfb'
Enable/disable feature