Add text pasting

[Hattorius]

Add a small text underneath the upload button with "pastebin instead?". Clicking it should redirect to "/paste.html". It should stay with the style of cipherdrop and feature a textarea for text input. This textarea value should be wrapped into a File and handled as a usual file. Please reuse the index.js file

[Hattorius]

This should really just be a separate page but the same javascript file. At the end it does exactly the same thing, it just requires a quick:

const content = "This is the content of the file.";
const blob = new Blob([content], { type: 'text/plain' });
const file = new File([blob], "snippet.txt", { type: 'text/plain' });

And process that file just like every other file