feat(platform): offline banners

[lennartkloock]

Proposed changes

This pr implements offline banners.

Including:

• New section in profile settings
• New upload endpoint for offline banners

Types of changes

What types of changes does your code introduce to Scuffle?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Further comments

[codecov]

Codecov Report

Attention: 306 lines in your changes are missing coverage. Please review.

Comparison is base (d94b57d) 45.48% compared to head (e77c8fb) 45.15%.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           feature/website     #197      +/-   ##
===================================================
- Coverage            45.48%   45.15%   -0.34%     
===================================================
  Files                  489      491       +2     
  Lines                32133    32369     +236     
===================================================
  Hits                 14617    14617              
- Misses               17516    17752     +236     

Files	Coverage Δ
platform/api/src/database/channel.rs	0.00% <ø> (ø)
platform/api/src/database/file_type.rs	0.00% <ø> (ø)
platform/api/src/database/role.rs	0.00% <ø> (ø)
platform/api/src/api/v1/gql/mutations/user.rs	0.00% <0.00%> (ø)
platform/api/src/subscription.rs	0.00% <0.00%> (ø)
video/cli/src/invoker/direct.rs	0.00% <0.00%> (ø)
video/ingest/src/ingest/connection.rs	75.41% <50.00%> (ø)
platform/api/src/api/v1/upload/mod.rs	0.00% <0.00%> (ø)
platform/api/src/config.rs	0.00% <0.00%> (ø)
platform/api/src/video_event_handler.rs	0.00% <0.00%> (ø)
... and 8 more