Update contact us form (#544)

- Add the Messages and Contact us elements (tabs) to the header of the communication panel
- Add the disabled state to the Upload component
- Prevent body scroll when the popup is open
- Fix a bug in the Upload component (undefined passed to the callback during file cancellation)
- Close the panel upon a press on the close button
- Allow adding multiple files at once
- Open links to external sites in different tabs
- Remove white space from the fields when validating the form
7 jobs for dev in 4 minutes and 47 seconds (queued for 10 seconds)
Status Job ID Name Coverage
  Test Build Static
passed #528542
Test_N_Build

00:03:33

 
  Build Docker Images
passed #528543
Nginx:Staging

00:00:56

passed #528544
Node:Staging

00:01:01

 
  Deploy
passed #528548
Pub:Staging-HL

00:00:09

passed #528546
Pub:Staging-HX

00:00:08

passed #528547
Staging:HL

00:00:09

passed #528545
Staging:HX

00:00:09