Fix the share location URI

[jmartinesp]

Content

Use ENGLISH locale to make sure the coordinates are formatted using the right decimal separator.

Also, when no label parameter was added, the URI just centered the map on some coordinates, instead of adding a marker. That's also fixed now by using an empty label.

Motivation and context

Fixes #4541

Screenshots / GIFs

Screen.Recording.2025-04-07.at.09.15.11.mov

Tests

With the app's language in Brazilian Portuguese:

• Share your location, or open an already existing shared location.
• Tap on the share icon in the location viewer.

The location should be shared correctly with some other app, displaying the marker instead of a search or just a centered map.

Tested devices

• Physical
• Emulator
• OS version(s): 16

Checklist

• Changes have been tested on an Android device or Android emulator with API 24
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• You've made a self review of your PR

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 80.14%. Comparing base (e557ee2) to head (6feb65e).
Report is 10 commits behind head on develop.

Files with missing lines	Patch %	Lines
...tion/impl/common/actions/AndroidLocationActions.kt	66.66%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4544      +/-   ##
===========================================
- Coverage    80.14%   80.14%   -0.01%     
===========================================
  Files         2083     2083              
  Lines        54902    54900       -2     
  Branches      6848     6848              
===========================================
- Hits         43999    43997       -2     
  Misses        8543     8543              
  Partials      2360     2360              

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