Favorite location management

From https://discord.com/channels/1313185644134006886/1313721837397606400
> main points are as follows,
> -being able to favorite a location and have pop up when you go to the bar
> **i think we should get rid of the little search icon in the journy tab. instead have a bar at the bottom that says something like navigate. when presses it comes up with a new menu. this could have the moved search button, along with favorites and other ideas.
> -have main poi’s like being able to se home, work, and school. maybe it could also access your contacts and pull address, that way you could just search for them.
> -the intelligent trip suggestions is a great idea. maybe this could also pull from apple calendar? dont know if there is an api for that lol.

listing out some obvious core uses cases that need to exist:

1. **Favorites**. Search is already implemented, and favorites as well but they only come from Connected Accounts. Will need to build an offline version of favorites now that you can manage independent of any given vehicle/Connected Account.
2. **Pinned favorites**. You should be able to pin any arbitrary favorite into your CarPlay dashboard tile as destinations you'd like to go to when not in a navigation session. This will be the starting point of initiating nav from CarPlay.
3. **Favorites list in CarPlay**. You should be able to see all of your favorites in CarPlay and navigate to them.

This is probably the first stage MVP, still oriented around your phone for location management but it's a good starting point for getting some core navigation experiences available in CarPlay.

from here, some more features that will be critical for overall MVP:

4. **Location search in CarPlay**. You should be able to easily search for locations in CarPlay. Auto-suggest will be critical here as well, so place recency and frequency will come into play.