Updated "upload" button tooltip and "accept" attribute to accept bin files

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Name	Status	Preview	Comments	Updated (UTC)
web-flasher	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 27, 2024 6:28pm

[thebentern]

Good catch. Can you please sign the CLA?

[noon92]

Whoops, thought that was per project, not per repo

[thebentern]

Whoops, thought that was per project, not per repo

To be honest, I thought it was for the entire org level as well 😅