Add distance sorting for Bulk Messaging Action

[scrxpted7327]

Description

Adding a feature which uses shared locations to sort users (users without location updated are exempt from the list entirely)

Agreement

• [X] There is no issue already suggesting my feature.

[rhunk]

Added in https://codeberg.org/SnapEnhance/SnapEnhance/commit/8bdc1f6d6a6bd1c9eae215098e4ef12715b579e2