feat: update conn wizard when kube config(s) are updated (#23558)

[adietish]

fixes eclipse-che/che#23558

out of the currently 1800 added lines, 1200 are tests :)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 42.52492% with 173 lines in your changes missing coverage. Please review.
✅ Project coverage is 14.90%. Comparing base (71098f6) to head (b5007c2).
⚠️ Report is 257 commits behind head on main.

Files with missing lines	Patch %	Lines
...hat/devtools/gateway/kubeconfig/KubeConfigUtils.kt	1.49%	66 Missing ⚠️
...ools/gateway/view/steps/DevSpacesServerStepView.kt	0.00%	54 Missing ⚠️
.../redhat/devtools/gateway/kubeconfig/FileWatcher.kt	50.00%	14 Missing and 4 partials ⚠️
...vtools/gateway/openshift/OpenShiftClientFactory.kt	0.00%	18 Missing ⚠️
...t/devtools/gateway/kubeconfig/KubeConfigEntries.kt	91.78%	0 Missing and 6 partials ⚠️
...t/devtools/gateway/kubeconfig/KubeconfigMonitor.kt	88.09%	4 Missing and 1 partial ⚠️
...at/devtools/gateway/DevSpacesConnectionProvider.kt	0.00%	4 Missing ⚠️
...n/com/redhat/devtools/gateway/openshift/Cluster.kt	83.33%	1 Missing ⚠️
.../redhat/devtools/gateway/server/RemoteIDEServer.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            main     #206       +/-   ##
==========================================
+ Coverage   0.00%   14.90%   +14.90%     
==========================================
  Files          4       35       +31     
  Lines         26     1382     +1356     
  Branches       0      239      +239     
==========================================
+ Hits           0      206      +206     
- Misses        26     1157     +1131     
- Partials       0       19       +19     

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