Feedback on Images to GIF tool

First off, thank you @idsoke for implementing #374 in response to #347! I am excited to get to use it.

I took it for a spin just now and I am looking forward to using it in the future, but I have some suggestions for ways to improve the tool:

• I mistakenly thought the large "No files selected" box on the left was draggable and dragged 1000 image files into it, which prompted Chrome to - very begrudgingly - open each image in a separate tab before giving up around 400 tabs. It'd be nice if this box accepted dragged files or otherwise made it more clear that you need to use the "Import from file" button down below.
• Relatedly, "Import from file" is a bit confusing since you're going to "upload" multiple "files". Maybe "Select files" or "Open files" would be a clearer label.
• The frame delay option is fixed to 50ms increments, which seems unnecessary. Animations often think in terms of FPS instead of time-between-frames, and it's not possible to approximate standard framerates (like 24fps = ~42ms/frame) with only 50ms steps.
• It would probably be more intuitive if there was a "Create" button instead of automatically re-rendering whenever you change anything. This one's debatable but I was personally looking for such a button. If you do want to keep the auto-rendering behavior I'd suggest adding some visual cue like a spinner or a "Creating..." message so it's apparent something is happening.

The image quality is fairly poor, introducing visible noise vs. the source frames. Given the quality, the file size is also quite high. For comparison, here's a 100-frame animation created via OpenSCAD and assembled using OmniTool and EzGif:

OmniTool	EzGif
7.66MB	355KB

Again, thank you for creating this! Hopefully this feedback is helpful.