fix(plugin-search-react): improve SearchPagination page limit change handling

[gtestault]

Hey, I just made a Pull Request!

Currently the SearchPagination component:

does not reset the page cursor when page limit changes.
This can cause some weird situations, for example:

1. User clicks 4 times on 'next page' with page limit 10
2. user now sees search result 40-50
3. now the user switches page limit to 100
4. he now sees search results 400-500 => this is way past what results the user went through

This PR fixes this behavior by resetting the page cursor when the page limit is changed.
Also, this PR fixes typescript typings by replacing the inexistent props omission onPageLimitChange prop with the correct onLimitChange.

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)
• All your commits have a Signed-off-by line in the message. (more info)

[backstage-goalie]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage/plugin-search-react	plugins/search-react	patch	v1.6.0-next.2

[github-actions]

Uffizzi Preview deployment-24600 was deleted.

[aitherios]

Hi @gtestault, thanks for the fix! 🎉

[github-actions]

Thank you for contributing to Backstage! The changes in this pull request will be part of the 1.14.0 release, scheduled for Tue, 16 May 2023.