Add an event filter to remove status tip updates

[vkbo]

Summary:

Since the menu is not using tooltips any more, hovering a menu item clears the status bar because it displays an empty message. This PR adds an event filter that block those events, leaving the status bar as is.

Related Issue(s):

Reviewer's Checklist:

• The header of all files contain a reference to the repository license
• The overall test coverage is increased or remains the same as before
• All tests are passing
• All flake8 checks are passing and the style guide is followed
• Documentation (as docstrings) is complete and understandable
• Only files that have been actively changed are committed