fix(ui): Retry workflow event stream on connection loss. Fixes #2179

[fsiegmund]

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
• The title of the PR is (a) conventional, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
• I have written unit and/or e2e tests for my change. PRs without these are unlike to be merged.
• Optional. I've added My organization is added to the README.
• I've signed the CLA and required builds are green.

[codecov]

Codecov Report

Merging #2180 into master will increase coverage by 0.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #2180      +/-   ##
==========================================
+ Coverage   11.69%   11.71%   +0.01%     
==========================================
  Files          52       51       -1     
  Lines       26353    26309      -44     
==========================================
  Hits         3081     3081              
+ Misses      22877    22833      -44     
  Partials      395      395

Impacted Files	Coverage Δ
persist/sqldb/workflow_archive.go	0% <0%> (ø)	⬆️
persist/sqldb/migrate.go	0% <0%> (ø)	⬆️
workflow/validate/lint.go	0% <0%> (ø)	⬆️

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[alexec]

good work - thank you