<WIP> Add the ability to the UI to delete engagements from the engagement tab

[coheigea]

The products and findings tabs have three vertical dots that allow you to edit/delete/etc., however these are missing from the engagements tab. So if you go to "All Engagements" for example you can't delete an engagement.

This PR adds the three vertical dots for "All Engagements", "Active Engagements" and "Engagements by Product"

[Maffooch]

Still seeing the z-index issue here, but the menu can be scrolled to show the whole dropdown

[coheigea]

Yeah I tried and failed to find a way to display it outside of the list

[devGregA]

@blakeaowens is going to try to fix the zindex issue.

[coheigea]

There's still a bug in active engagements, this time if you scroll down the page the 3 dots remain in situ:

[damiencarol]

@coheigea if this PR is still in progress, you can mark it as a draft.

[blakeaowens]

There's still a bug in active engagements, this time if you scroll down the page the 3 dots remain in situ:

[blakeaowens]

@coheigea I will have another look later this evening.

[blakeaowens]

[coheigea]

LGTM thanks @blakeaowens