feat(ui): label autocomplete for report tab

[tczhao]

Like #6776, but for the Reports tab

Untitled_.Oct.8.2021.10_00.AM.mp4

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[codecov]

Codecov Report

Merging #6881 (4f6abd3) into master (689ad68) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #6881      +/-   ##
==========================================
- Coverage   48.55%   48.50%   -0.05%     
==========================================
  Files         265      265              
  Lines       19220    19258      +38     
==========================================
+ Hits         9332     9342      +10     
- Misses       8839     8863      +24     
- Partials     1049     1053       +4     

Impacted Files	Coverage Δ
workflow/controller/operator.go	71.06% <0.00%> (-0.15%)	⬇️
persist/sqldb/migrate.go	0.00% <0.00%> (ø)
pkg/apiclient/http1-client.go	0.00% <0.00%> (ø)
persist/sqldb/workflow_archive.go	0.00% <0.00%> (ø)
pkg/apiclient/argo-kube-client.go	0.00% <0.00%> (ø)
pkg/apiclient/argo-server-client.go	0.00% <0.00%> (ø)
pkg/apiclient/offline-workflow-service-client.go	0.00% <0.00%> (ø)
...ient/argo-kube-workflow-template-service-client.go	0.00% <0.00%> (ø)
.../error-translating-cron-workflow-service-client.go	0.00% <0.00%> (ø)
server/workflowarchive/archived_workflow_server.go	59.43% <0.00%> (+0.38%)	⬆️
... and 2 more

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[alexec]

Please add screenshot or video in action.

[tczhao]

Video added