* MediaUploadingPreprocessor - Prevent images without any GPS metadata from being changed
* Add support for sending images
* Add support for sending video, audio and file attachments
* Rename MediaPickerPreview to MediaUploadPreview
* Move media uploading to the MediaUploadPreviewScreen, add waiting indicators and error handling
* Add support for pasting and drag&dropping in media for upload
* Adopt new media picker source UI, remove developer flag
* Set minimum heights for timeline loadable images
* Fix invalid camera picker file names
* Fix flakey MediaUploadingPreprocessor image tests, improve gps metadata stripping
* UITests: Update existing screenshots and add new step for the room attachment picker
* Switch all github action runners to macos-13
* Cleanup enter key and paste message composer handlers
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