v1.30.0

• ⚠️ BREAKING CHANGE: all uploaded gpx files are now stored in a folder called "data" instead of "uploads". All existing gpx files will be automatically migrated. Please adjust your docker volume mounts.
• add: gpx files are now stored in a zip to reduce file size
• add: planned tour preview images are stored in the same folder as the corresponding gpx file
• add: changed color of save buttons for track and planned tour forms to ensure they are not confused with the "create link" button
• add: improve file name on gpx download
• add: the changelog now also contains the release dates for each version
• add: added support for uploading .fit files for tracks and planned tours
• fix: tile hunting map: the total number of visited tiles and the bar chart now correctly shows the visited tiles depending on the selected track types and years
• chore: update dependencies