BugFix: safely get the route for onIndexChange

[jafar-jabr]

Motivation

sometimes onIndexChange throws exception "can not read property name of undefined"

Test plan

Not a big changes, it will not break nothing.

[github-actions]

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[kacperkapusciak]

Hey @jafar-jabr 👋
Thanks for the PR! It looks like the CI is failing with linting errors. Could you fix them?

You can use yarn lint to run the linter locally.

Cheers

[codecov-commenter]

Codecov Report

Merging #10721 (47e6b30) into main (818862b) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main   #10721      +/-   ##
==========================================
- Coverage   74.85%   74.82%   -0.03%     
==========================================
  Files         167      167              
  Lines        5122     5124       +2     
  Branches     1981     1982       +1     
==========================================
  Hits         3834     3834              
- Misses       1250     1252       +2     
  Partials       38       38              

Impacted Files	Coverage Δ
...material-top-tabs/src/views/MaterialTopTabView.tsx	60.00% <0.00%> (-9.24%)	⬇️

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[satya164]

Thanks for the PR. However, we can't merge this as this is a workaround that masks the actual issue: i.e. the index is out of range.

Please open an issue with a repro that replicates this issue instead.