Allow import of activity type on GPX

[rubenpoppe]

Allow the import of activity type like it is present in the export of an activity. Importing activity type is already supported for FIT and TCX files.

<gpx>
 <metadata>
  <time>2023-06-25T08:00:00Z</time>
 </metadata>
 <trk>
  <name>Morning Run</name>
  <type>9</type> or <type>Run</type>
  ...

[Elliott · Accepted solution]

@rubenpoppe you can always send activity information with additional parameters alongside your file upload, ie. passing sport_type.