zulip

At present, while the left sidebar "Drafts" link tooltip includes the keyboard shortcut, the compose box "Drafts" link tooltip does not. We should fix this.

The compose box "Drafts" tooltip should thus be "Drafts (d)", with the same styling as the compose box x button tooltip:
![Screen Shot 2022-05-26 at 4 20 30 PM](https://user-images.githubusercontent.com/2090066/170594930-8926447c-8740-48

This is an element of #791.

We now have a clear unique platform determination via code in platform_code.py which runs on startup.

For various reasons it would be useful to show this information:

• on the terminal, when the application starts up, possibly with a warning if unsupported
• in the About popup, possibly in a new section at the bottom

Each of these could be separate commits

Apparently, we have a few integrations that are using the !avatar markdown syntax that we removed some time ago:

tabbott@coset:~/python-zulip-api$ git grep '!avatar'
zulip/integrations/git/post-receive:            commits += '!avatar(%s) %s\n' % (author_email, subject)
zulip/integrations/git/zulip_git_config.py:# return '!avatar(%s) [%s](https://example.com/commits/%s)\n' % (author, subj

From https://funprog.srid.ca/haskell/zulip-archive-looking-for-maintainer.html