Add applications page

[ricoberger]

• I added a CHANGELOG entry for this change.
• I adjusted the corresponding documentation for this change.
• I adjusted the values.yaml file and the documentation for all values.

[codecov-commenter]

Codecov Report

Merging #323 (03ee17a) into rework-kobs-architecture (3ea5ac2) will increase coverage by 4.63%.
The diff coverage is 92.53%.

@@                     Coverage Diff                      @@
##           rework-kobs-architecture     #323      +/-   ##
============================================================
+ Coverage                     42.91%   47.55%   +4.63%     
============================================================
  Files                            54       56       +2     
  Lines                          2852     3146     +294     
============================================================
+ Hits                           1224     1496     +272     
- Misses                         1588     1605      +17     
- Partials                         40       45       +5     

Impacted Files	Coverage Δ
pkg/hub/hub.go	0.00% <0.00%> (ø)
pkg/hub/store/store.go	100.00% <ø> (ø)
pkg/hub/watcher/watcher.go	13.51% <0.00%> (-0.48%)	⬇️
pkg/hub/store/bolt/bolt.go	79.67% <88.28%> (+4.67%)	⬆️
pkg/hub/api/applications/applications.go	100.00% <100.00%> (ø)
pkg/hub/api/clusters/clusters.go	100.00% <100.00%> (ø)
pkg/hub/middleware/userauth/auth.go	100.00% <100.00%> (ø)
pkg/hub/middleware/userauth/context/context.go	100.00% <100.00%> (ø)

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