feat: add NextInfo panel (reopened)

[ianshade]

This reverts commit cc21d92, bringing back the NextInfo panel, which has been merged in #485 to a wrong branch and reverted in #516

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  A feature - new dashboard panel type.

• What is the current behavior? (You can also link to an open issue here)
  No feature.

• What is the new behavior (if this is a feature change)?
  This adds a new type of dashboard panel, called NextInfo panel. It displays a label consisting of:

  • name of the panel
  • name of the next Segment (the segment that the next part(Instance) of the playlist belongs to)
  • title of the next Part

  It can be configured through the RundownLayoutEditor with the following custom options:

  • Show segment name
  • Show part title
  • Hide for dynamically inserted parts - if the next part was inserted dynamically, the label will be hidden
  • Scale - font size multiplier (instead of Height)

• Other information:
  Screenshots:
  
  

  Formatting (brackets around part title etc.) could be customized with CSS.

Status

• Code documentation for the relevant parts in the code have been added/updated by the PR author
• The functionality has been tested by the PR author
• The functionality has been tested by NRK

[codecov-commenter]

Codecov Report

Merging #578 (9ced45b) into release38 (ee4ac27) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           release38     #578   +/-   ##
==========================================
  Coverage      82.44%   82.44%           
==========================================
  Files             12       12           
  Lines           1014     1014           
  Branches         198      198           
==========================================
  Hits             836      836           
  Misses           177      177           
  Partials           1        1           

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[jstarpl]

Seems reasonably self-contained. I would suggest using React Function components going forward and using useTracker() hooks.

[jstarpl]

@ianshade could you please look into resolving these merge conflicts?