GitLab

- Make sure that the segments connecting the exon boxes are always drawn correctly
   by deriving the coordinates and the widths of the connecting segments from the precalculated coordinates
   and widths of the exon boxes
- Make sure that the right border of the last exon box does not extend beyond the total transcript width
   by using a custom interpolation function that always interpolates to the smallest integer
   rather than to the nearest one.
Co-authored-by: Imran Salam <imran@ebi.ac.uk>

Plus, prevent instant rejection of promises in the `noEarlierThan` helper

to be able to access Contact Us form

- Fetch a token for form submission
- Submit the form
- Show the spinner while the form is being submitted

- Add the slider as a challenge for form submission
- Add email validation using browser's inbuilt functionality

- 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

* ENSWBSITES-958 and ENSWBSITES-957
* display gene source using gene metadata.name
* fix test by adding gene metadata
* check for gene metadata name should be for xref only
* Add margin top to source
* Remove unused regex for gene name formatting
* update test for genename formatting