Add cluster search/filter

[maciaszczykm]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #2694

Special notes for your reviewer:

Release note:

Add option to filter clusters.

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: maciaszczykm

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• OWNERS [maciaszczykm]

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[kubermatic-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[maciaszczykm]

/assign @floreks @kgroschoff

[codecov]

Codecov Report

Merging #2695 into master will decrease coverage by 0.10%.
The diff coverage is 28.94%.

@@            Coverage Diff             @@
##           master    #2695      +/-   ##
==========================================
- Coverage   52.37%   52.26%   -0.11%     
==========================================
  Files         235      236       +1     
  Lines        8226     8264      +38     
  Branches      996     1003       +7     
==========================================
+ Hits         4308     4319      +11     
- Misses       3915     3942      +27     
  Partials        3        3              

Impacted Files	Coverage Δ
src/app/shared/entity/cluster.ts	63.02% <0.00%> (-0.54%)	⬇️
...app/cluster/cluster-list/cluster-list.component.ts	58.66% <8.33%> (-9.59%)	⬇️
...rc/app/shared/components/search-field/component.ts	66.66% <66.66%> (ø)
src/app/shared/shared.module.ts	100.00% <100.00%> (ø)

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[maciaszczykm]

@kgroschoff Can you review it?

[kgroschoff]

Works like a charm, nice work 👍
/lgtm

[kubermatic-bot]

LGTM label has been added.

Git tree hash: 8a1cc32b92ae96e5fa200400e87d13e4986333ac