[Feature] [Breakdown] Add context menu option to remove element from piece of text

[Hyuri]

Issue

Right now, there isn't a clear and easy way to disassociate a piece of highlighted text from an element. The only ways I could find were either removing the element itself, which isn't good because I may still have other text associated with that element, or deleting the text and writing it again.

Proposal

Add "Remove Element" menu option to the context menu when Right-Clicking on a piece of highlighted text, that removes its element association and highlight. A confirmation dialog, containing the name of the element that will be removed, should show up.

If the text has multiple elements associated with it, this "Remove Element" option should bring up a dialog where we can select which element to be removed.