Remove trailing whitespace from JSDoc comments

[tschaub]

This removes trailing whitespace from JSDoc comments. I'll add additional tests after confirming that this is going in a direction you agree with.

Fixes #25916

[msftclas]

All CLA requirements met.

[tschaub]

I was initially only running npx jake runtests tests=JsDoc. I see that this is causing other failures when running the complete test suite. I'll dig around more later.

Update - I've modified some additional test cases to reflect the lack of trailing whitespace. I'll keep going after getting confirmation that there is agreement about this change.

[ghost]

The new test is probably not necessary given the number of other tests updated here.

[tschaub]

Minor, but I thought a test with multiple trailing spaces would make sense.

[tschaub]

I think this change was due to mixed line endings in the file. I can remove this part of the change if needed.

[tschaub]

I've updated the remaining tests to reflect the new behavior. Let me know if you think the addition of the quickInfoJsDocTags1.ts test is unnecessary or if you'd like to see additional syntax covered.