Remove Internet Explorer 11 specific logic from KTextTruncator

[Nivas7]

Description

In summary, to remove IE11 support from the KTextTruncator component:

Remove the lineHeightIE prop.
Remove the IE11 fallback logic and related styles from the truncate method.

This change, treated as a breaking change, aims to simplify the component by removing unnecessary code for the unsupported IE11 browser. The updated component should be thoroughly tested to ensure no regressions.

Issue addressed

#643

Addresses #652

Before/after screenshots

Before

After

Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• The change is described in the changelog section above

Reviewer guidance

• Is the code clean and well-commented?

After review

• The changelog item has been pasted to the CHANGELOG.md

Comments

[MisRob]

Thank you for following up. I think some more cleanup is needed, since

if ('CSS' in window && CSS.supports && CSS.supports('-webkit-line-clamp: 54'))

condition is not needed anymore.

Can you simplify the truncate method's structure to

  if (this.maxLines === 1) {
    ...
  } else {
   ...
}

?

[MisRob]

This won't be needed, see #652 (comment)

[MisRob]

I don't think these changes have anything to do with the modal, possibly result of copy-paste? Please cleanup.

[Nivas7]

Thank you for your guidance,can you check a latest commit @MisRob

[MisRob]

Thank you @Nivas7, all is looking good to me now. One last thing before merge - please run yarn lint-fix and commit the fixes. This should resolve the linting check failure.

[Nivas7]

Thanks for ur support

[Nivas7]

Apologize for late i fixed linting errors. @MisRob thinks the code should works fine.

[MisRob]

Thanks @Nivas7, no problem! All is looking good to me (just pushing a small update of changelog). Thanks and congratulations to your first contribution.