Fixes and cluster summary redesign

[floreks]

What this PR does / why we need it

• Refactored the cluster list subscription handling
• Fixed the VSphere datastore/datastore cluster field logic
• Redesigned cluster summary step
• Update error notification styling
• Fixed small issue where auto-expand would not properly work on cluster details

Summary

Error notifications

Which issue(s) this PR fixes

Fixes #4135
Fixes #4043
Closes #3927
Closes #4128

Release note

Redesign cluster summary step. Update error notifications and event colors styling.

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floreks

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• OWNERS [floreks]

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[codecov]

Codecov Report

Merging #4141 (4f28ca1) into master (795a222) will increase coverage by 0.03%.
The diff coverage is 48.27%.

@@            Coverage Diff             @@
##           master    #4141      +/-   ##
==========================================
+ Coverage   52.16%   52.19%   +0.03%     
==========================================
  Files         319      317       -2     
  Lines       11460    11435      -25     
  Branches     1516     1507       -9     
==========================================
- Hits         5978     5969       -9     
+ Misses       5164     5148      -16     
  Partials      318      318              

Impacted Files	Coverage Δ
...pp/core/components/notification-panel/component.ts	31.70% <0.00%> (ø)
...app/shared/components/cluster-summary/component.ts	22.00% <11.11%> (+3.96%)	⬆️
src/app/cluster/list/cluster/component.ts	67.58% <55.31%> (+0.45%)	⬆️
src/app/cluster/details/cluster/component.ts	50.19% <100.00%> (ø)
src/app/shared/components/tab-card/component.ts	38.09% <0.00%> (ø)
...testing/fake-data/cluster-with-machine-networks.ts
src/app/testing/fake-data/user-group-config.ts
src/app/testing/services/notification-mock.ts
src/app/testing/services/node-mock.ts
src/app/testing/services/feature-gate-mock.ts
... and 75 more

---

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[maciaszczykm]

/lgtm

[kubermatic-bot]

LGTM label has been added.

Git tree hash: ef7f0535208c7d44f30d083dd8314bd92eca6569

[floreks]

/retest

[kubermatic-triage-bot]

/retest
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