Hugo Lefeuvre authored Oct 23, 2018 and Sébastien Blin committed Nov 28, 2018

Better UI reactivity on account state change:

+ Do not show audio and video call options in the conversationsview's
  popup menu when account is disabled (this doesn't make sense,
  account is not able to place a call)
+ Refresh popup menu on account state change (list of options
  has to be updated)
+ Refresh chatview on account state change (some elements of the
  chatview require update, e.g. message bar)
+ Fix broken display property update in hideControls()

Misc code cleanup, add a few helpers to avoid code duplication.

Change-Id: I212a47566bd65687e5ed61ec56087a4e1f3166bd
Gitlab: #929


Reviewed-by: Sebastien Blin <sebastien.blin@savoirfairelinux.com>