Suggestion for additional styling of the request history tab content

[nckrtl]

I was looking at the request history and I thought it could be shown bit more compact:

• The widget actions seem to float a bit
• The actions could benefit from specific styling making more clear that search is an input field and that "Clear" and "Show all" are clickable
• Gap between actions and table could be reduced.

I'd like to suggest a more compact layout. I reversed the order of the actions as it seemed more logical. Open to any feedback. If this suggested UI is agreed upon I'll attempt to implement it, and perhaps it might make sense to implement the changes in the base package first.