Feat: Add possibility filter select/multiselect columns with dropdown

[Koc]

Right now it is not possible to to search select/multiselect columns using OR operator (contains "aaa" or "bbb") using plain text filters. This PR adds possibility to filter select/multiselect with droprowns instead of plain text. Also it can be useful for large tables when you don't know full list of possible dropdown values

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This is how it works now

This is how it works with patch

[EEngl52]

Thanks a lot for this new feature! Do I understand it correctly that this expands the filter options within a particular view (i.e. on view level)?
Would it be possible to extend the filter options even further to app level, so you could filter all views within a tables app simultaneously? The existing filter option is very helpful to quickly find the relevant rows within a view. When you have a tables app with several views and the relevant information is spread over all of them, it is rather tedious and annoying that you have to filter all of them separately. Having a joint search on app-level would improve usability immensely for us.