refactor: improve custom filters readability with optional chaining

[ManikantaMandala]

Description
refactor customFilter.js file mentioned here: these_issues

also mentioned in this issue #1272

[changeset-bot]

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Latest commit: 95dda3c

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[github-actions]

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[derberg]

@ManikantaMandala thanks, just left one comment and also update PR title to make it more informative as later it lands as a commit message in master

[derberg]

@ManikantaMandala please followup with failing tests. Next time, you better run them locally to make sure they pass, otherwise you will have to do this test ping pong with maintainers and wait for GitHub Actions to run tests for you

[ManikantaMandala]

@ManikantaMandala please followup with failing tests. Next time, you better run them locally to make sure they pass, otherwise you will have to do this test ping pong with maintainers and wait for GitHub Actions to run tests for you

Thank you for the feedback @derberg
As this is my first contribution I had made some mistakes
I will do the necessary things for the next pr

and also can you suggest where to refer to test it locally if possible
I have done local testing https://github.com/asyncapi/generator/blob/master/Development.md#local-testing
and also done docker isolated testing.
all passed

[derberg]

@ManikantaMandala errors happen even if you make PR number 100, no worries

test run is visible in https://github.com/asyncapi/generator/actions/runs/11219255311/job/31244271269?pr=1275

and yes, run locally as described in development guide - if they pass locally, please share the log in this PR for overview

[derberg]

@ManikantaMandala because of a merge of one PR, you have conflicts here now, so please solve them and push updates to the PR

[derberg]

please remove changes from eslintrc

[sonarcloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[derberg]

/rtm