Reduce min zoom level to 1.0 to allow viewing most of world

[otwacam]

Currently the map view limits the viewable area meaning it is not possible to all contacts within the world which is unnecessarily restrictive and prevents viewing contacts across a larger area. Additionally the ios version screenshots on the store show a larger view of the map than is possible in the android version.
This change reduces the minimum zoom level to 1.0 to allow viewing of most of the world.

The new zoom levels do go outside the boundaries leading to the map to be repeated but this behaviour can be seen in a number of of other apps and is to be expected for excessive zooming out. Additionally the markers will only be shown on the main section of the map that is visible and will not be duplicated.

Note: I was unable to test the google map layer and have only tested the openstreetmap version as shown below.

Images for comparison:
ios(store screenshot) vs android with minimum zoom level(current)

Android with new minimum zoom levels

[otwacam]

Test failures are unrelated to changes and look to be something that can randomly occur.
Run for a different change with same failures: https://github.com/owntracks/android/actions/runs/21070480607/job/60599799356