Chore: Re-do Landing Page - Remove All Non-essential

[nelsonic]

At present the landing page of the imgup app is:

Please try to remember:

Nobody Cares What Tech You're Using!

Yes, as an engineer you might care.
But the person using the App doesn't care for a millisecond.
You're just wasting their time with this noise.

The /liveview route: https://imgup.fly.dev/liveview is closer to what we want:

But it's still cluttered and not mobile-first/focussed:

The name of the file I want to upload is below the fold, i.e. I have to scroll to see it.

And there's a pointless Upload button that adds friction/steps to the process.
Uploading should be automatic.

Todo

• Remove the option for multiple ways to upload and just
• Show a single upload landing page with an upload interface
• Remove the "Upload" button
• Automatically trigger upload and display thumbnail when the image is selected or dragged in.
• Automatically show the thumbnail of the uploaded image as soon as possible.
• Add Copy URL Button via JS: Feat: Add Button + JS To Copy Image URL #126

[nelsonic]

We appear to be using this Flowbite (TailwindCSS) template:
https://flowbite.com/docs/forms/file-input/

if not it's certainly very similar. 💭
if we borrow code, we should credit it with a comment. 💬