feat(web): remember last chosen map location when editing

[ngc7293]

Description

When adding location data to multiple assets in a row, it can be annoying to have to zoom-in from the top-level zoom everytime, especially when editing photos that were taken in close succession (e.g.: adding location to a travel photos album).

With this commit, the web UI remembers the last location picked by the user and opens the map to this location. The opened map does not include a pin. this "lastChosenLocation" is kept in the asset-editor store and is lost when refreshing the page (by design).

How Has This Been Tested?

• Added two assets
• Edited one asset's location using the web UI
• Opened location editor for second asset: it show the map around the previous asset's location (but no pin)
• Refreshed page without picking a location
• Opened location editor for second asset: it show the top-level map.

Screenshots (if appropriate)

immich-location.mp4

API Changes

None.

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation if applicable
• I have no unrelated changes in the PR.
• I have confirmed that any new dependencies are strictly necessary.
• I have written tests for new code (if applicable)
• I have followed naming conventions/patterns in the surrounding code
• All code in src/services uses repositories implementations for database calls, filesystem operations, etc.
• All code in src/repositories/ is pretty basic/simple and does not have any immich specific logic (that belongs in src/services)