Ability to filter TableAddSearchRow and TableColumns. Give them the same styling.

[mauricehofman]

When having a resource with many columns, the ButtonWithDropdown can get very large. I added a search (filter) to both ButtonWithDropdown. I also gave the ButtonWithDropdown for TableAddSearchRow the same styling as the TableColumns.

Please check the styling, i am no front-ender. I did not make any modification to dusk, i am not sure if this is needed. I am using this table for my own project, and will most likely add more features. I hope they get added in the package, so i can use the package instead of a custom version in my own code base.