We remove handle_bot_owner_profile function and we handle the opening
of popover of bot owner from a single click handler in popovers.js
using 'view_user_profile' class.
We also rename 'view_user_profile' class to 'view_full_user_profile'
for the button in popover, which is used to open full user profile.
This commit replaces the "Reply mentioning user" option with "Copy mention
syntax" for user info popovers that are not opened from a message.
Clicking on "Copy mention syntax" will copy the mention syntax of user to
clipboard.
This change is done because user popovers not opened from message are not
linked to any message.
We rename data-bot-owner-id and data-owner-id, used to open user
profile of bot owners, to data-user-id such that we can make a
global click handler for all of them by making a separate class
in next commit.
We now prevent these variations:
* <hr/>
* <hr />
* <br/>
* <br />
We could enforce similar consistency for other void
tags, if we wished, but these two are particularly
prevalent.