It should be possible to remove/reset the locations for "Home" and "Work"

[4jNsY6fCVqZv]

Acknowledgments
Please check the following boxes with an x if they apply:

• The feature I want to propose would be useful for the majority of users, not only for me personally.
• I am aware that Transportr is mostly developed by one person in their unpaid spare time.
• I can help myself to get this feature implemented or know someone who wants to do it.
• If I want to add support for a new region or country, I checked that this is already available in public-transport-enabler and know the process described on the Transportr homepage.

Is your feature request related to a problem? Please describe.
I can delete a trip.
However, once I have decided to make an entry for "Home" and "Work", I can only change it.

Describe the solution you'd like
In addition to being able to change these locations, I would also like it to be possible to reset/remove them completely.