Ensure uploaded image is inserted with correct size

[swissspidy]

To-do:

• Maybe move onSuccess logic so it only runs after thumbnail generation (if thumbnails are generated client-side, that is)
• Add tests

Fixes #321.

[github-actions]

Size Change: +128 B (0%)

Total Size: 3.02 MB

ℹ️ View Unchanged

Filename	Size	Change
build/195.js	2.36 MB	0 B
build/472.js	7.54 kB	0 B
build/541.js	83 kB	0 B
build/blurhash.worker.js	3.21 kB	0 B
build/canvas.worker.js	2.78 kB	0 B
build/chunk-ffmpeg.js	5.89 kB	0 B
build/chunk-selfie-segmentation.js	16.3 kB	0 B
build/dominant-color.worker.js	4.49 kB	0 B
build/ffmpeg.js	1.1 kB	0 B
build/heif.worker.js	424 kB	0 B
build/media-experiments-blocks-rtl.css	298 B	0 B
build/media-experiments-blocks.css	297 B	0 B
build/media-experiments-rtl.css	251 B	0 B
build/media-experiments.css	249 B	0 B
build/media-experiments.js	41.4 kB	+56 B (0%)
build/pdf.js	564 B	0 B
build/subtitles.js	861 B	0 B
build/upload-requests-modal-rtl.css	267 B	0 B
build/upload-requests-modal.css	268 B	0 B
build/upload-requests-modal.js	801 B	0 B
build/view-upload-request-view-rtl.css	714 B	0 B
build/view-upload-request-view.css	716 B	0 B
build/view-upload-request.js	16.8 kB	+72 B (0%)
build/vips.worker.js	47.7 kB	0 B

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