Improve GPS trip tracking accuracy

[GCyganek]

Explanation of Change

Improves GPS trip tracking accuracy in IOURequestStepDistanceGPS/const.ts: lowers GPS_DISTANCE_INTERVAL_METERS from 100m to 50m so location updates are recorded twice as often, and sets activityType: ActivityType.AutomotiveNavigation as it should help with getting coordinate aligned to the roads on iOS (https://developer.apple.com/forums/thread/758704).

Fixed Issues

$ #101432
PROPOSAL: N/A

Tests

iOS native & Android native:

1. Open the app
2. FAB > Track distance > GPS
3. Start the GPS trip
4. Verify that the location updates are more frequent and happen every ~50 meters (0.03mi)

• Verify that no errors appear in the JS console

Offline tests

N/A

QA Steps

Same as tests

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
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  • Android: Native
  • Android: mWeb Chrome
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Screenshots/Videos

Android: Native

Screen.Recording.2026-09-17.at.16.23.23.mov

iOS: Native

Screen.Recording.2026-09-17.at.16.25.26.mov

[melvin-bot]

@getusha Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[GCyganek]

In case something happens here @jmusial will take over as I'm OOO next week