pat contentbrowser: ui improvements for select button in toolbar

[1letter]

• use the title of content object as label of the select button
• enable a bs tooltip with the path info of selected contentobject

the old behavior was "display the path", now "display the title" and show the path in a tooltip

[1letter]

@petschki @MrTango let me know what is your opinion for the requested solution?

[MrTango]

Good idea. I was also wondering if it makes sense to just use the button for the word select and show the path/ title as text. It was not right away clear to me where i select a folder ;)

[1letter]

I have shown this solution to our power users/editors. They want a cleaner solution. ‘Less is more’ - just the “Select” button without text, but that would mean the button for the selection should be in the same column above, not in the next right column up. Perhaps is the solution of this PR overloaded? Are we to nerdy in our Plone world ? I convert this PR to a Draft PR.