fix(ui): passing Promise into ClipboardItem to make it work in Safari

[parnas]

throwing Error in getBaseLayerBlob, instead of returning nil using copyBlobToClipboard for both Canvas and Text2Image clipboard functionality

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Documentation Update
• Community Node Submission

Have you discussed this change with the InvokeAI team?

• Yes
• No, because: It's a simple bug

Description

Safari ClipboardItem functionality only works with unresolved Promises. Chrome (and Firefox with the ClipboardItem setting enabled) work with either.

QA Instructions, Screenshots, Recordings

Test copy to clipboard on both Canvas and Image2Text. Save to Gallery, Download Image and Send to ControlNet functionality on Canvas were also slightly affected.

Added/updated tests?

• Yes
• No : Are there FE tests?

[psychedelicious]

Thanks!

No FE tests, sorry - closest thing is to run yarn lint (or the gh action will run for you).

[Millu]

Thanks for fixing this @parnas!

If you're interested in continuing to contribute to InvokeAI's frontend, we could use all the help we can get! Are you in the Discord by any chance? We'd love to have you join us in the #dev-chat channel if so!