For messages that you sent yourself, it is more likely that you
will want to edit the message than reply to yourself, collapse
your own message, etc. from the info menu, so we make it the first
option. This should make it easier for keyboard users to edit
messages.
(imported from commit 94c5036a4ae85ed091c95eae2545e78887a09598)
Add the option "Narrow to just this message" to the chevron
menu. This has two use cases:
* It's an easy way to get a sharable URL for the message.
* It reduces distractions.
For now it is feature flagged to just customer12.invalid and staging.
See #1880.
(imported from commit 897d247176f9024ff825ccd3b338236569eed5ab)
Steve Howell
Waseem Daher
Tim Abbott