Summary:
**Fix Conpherence messages overlapping header in mobile mode**
Before:
{F413544}
After:
{F413546}
**Make Conpherence input box be one line even in desktop mode**
Before:
{F413541}
After:
{F413540}
This second change, in particular, is motivated by the fact that pressing `Enter` sends the message, whereas the multi-line box gives the impression that the `Enter` key would simply introduce a line break in the message. (That's still possible via `Shift`+`Enter`, btw.)
Test Plan:
- Visit a Conpherence room with some content in mobile mode;
scroll down and notice that the messages no longer slightly overlap the header.
- Visit a Conpherence room in desktop mode;
verify that the input box now has the height of a single line.
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Tags: #conpherence
Differential Revision: https://we.phorge.it/D25485
e59702569f