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Fix emojione cache

Update emojione sprite and emoji picker

Livechat fixes and improvements

Closes #3731

- Does not trigger when offline - Close #2235
- Fix autolinker
- Add side borders to offline form
- Better styling of register form
- Add branding to all pages

LingoHub based on develop

Manual push by LingoHub User: Gabriel Engel.
Project: Rocket.Chat

Made with  by https://lingohub.com

Livechat minor fixes and improvements

Forward livechat rooms

Livechat guest pool fixes and improvements

- Bypass user registration validations for livechat users - Closes
  #2276, #1963

- Set livechat count and order to zero when empty

- Pick a livechat departament if none select and there is more than one

- Fix livechat warning hide message

- Add autolinker to livechat

- Add missing translations
- Hide incoming livechat from unavailable agents
- Remove duplicated template

LingoHub based on develop

Manual push by LingoHub User: Gabriel Engel.
Project: Rocket.Chat

Made with  by https://lingohub.com

Improved user search (name and username)

Fixes #3055

Or, at least, it should. I haven't personally attempted to build Rocket.Chat with this change.

Merge branch 'set-realname-to-alias' of https://github.com/nishimaki10/Rocket.Chat into nishimaki10-set-realname-to-alias

# Conflicts:
#	packages/rocketchat-lib/i18n/ja.i18n.json