I worked on this a little bit: https://github.com/ternera/fluxer/commit/dd9811f25400ea7be159aa4383d24e96fcab073f
Testing locally, it fixed the root issue, but there is still a problem because 10MB is hardcoded in I18nDisplayConstants.ts. Even if you increase the limit to 20MB (for example) and upload a 30MB image, it still says to choose a file smaller than 10MB. However, when I increased the limit to 100MB and uploaded a 30MB file, it worked fine.
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Comment by ternera
I18nDisplayConstants.ts. Even if you increase the limit to 20MB (for example) and upload a 30MB image, it still says to choose a file smaller than 10MB. However, when I increased the limit to 100MB and uploaded a 30MB file, it worked fine.