fix(ui): UI crashes on rollout view due to undefined status

[rbreeze]

Signed-off-by: Remington Breeze remington@breeze.software

Fixes #1280

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've signed my commits with DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My builds are green. Try syncing with master if they are not.
• My organization is added to USERS.md.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
5 Code Smells

No Coverage information
2.6% Duplication

[codecov]

Codecov Report

Merging #1287 (1e2a794) into master (07354b3) will increase coverage by 0.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1287      +/-   ##
==========================================
+ Coverage   81.21%   81.39%   +0.18%     
==========================================
  Files         105      106       +1     
  Lines        9495     9604     +109     
==========================================
+ Hits         7711     7817     +106     
+ Misses       1269     1259      -10     
- Partials      515      528      +13     

Impacted Files	Coverage Δ
controller/metrics/analysis.go	82.00% <0.00%> (-18.00%)	⬇️
controller/metrics/experiments.go	83.33% <0.00%> (-16.67%)	⬇️
utils/log/log.go	94.00% <0.00%> (-6.00%)	⬇️
pkg/kubectl-argo-rollouts/cmd/promote/promote.go	93.90% <0.00%> (-2.05%)	⬇️
pkg/kubectl-argo-rollouts/cmd/lint/lint.go	68.33% <0.00%> (-1.44%)	⬇️
utils/defaults/defaults.go	85.71% <0.00%> (-1.33%)	⬇️
rollout/trafficrouting/alb/alb.go	81.25% <0.00%> (-0.90%)	⬇️
rollout/service.go	78.66% <0.00%> (-0.29%)	⬇️
rollout/trafficrouting/istio/istio.go	78.66% <0.00%> (-0.27%)	⬇️
pkg/kubectl-argo-rollouts/cmd/status/status.go	93.22% <0.00%> (-0.23%)	⬇️
... and 30 more

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