[IMP] im_chat: set auto focus on search box
[IMP] OpenChatter: display who likes a post

Cherry-picked from 8e7dfaed151dcc9ed3a5b4bdd87e8afcad51a765
Closes #1729
[FIX] web: scroll should move top on clicking menu on top bar

Cherrypicked from 0a1fa70aab548e290171e71b5e56226255af35d7
Closes #2259
[IMP] Optimize chatter: remove insert_message method, instead of push each message to DOM using insert_message, create render_thread that will render each of it's message

[FIX] :  show more buttons not appear

[IMP] : code to optimize loading time