Fixing a problem when u cannot put two images and they are going into two different places for images.

remove animation when pasting files into prompt
rework two dragdrop js files into one

split out the visibility method for pasting and use a sort inside the paste handler to prioritize on-screen fields rather than targeting ONLY on screen fields

Fixes Firefox pasting support
(and possibly other browsers)

fix paste always going into txt2img field

Drop an image or generational text onto the prompt bar, it loads the info for parsing.

refactored image paste handling to fill unset images successively, then replace last existing image (fixes #981)

This reverts commit 9035afba.

As it is currently, txt2img and img2img send back the previous output args (txt2img_gallery, generation_info, html_info) whenever you generate a new image. This can lead to uploading a huge gallery of previously generated images, which leads to an unnecessary delay between submitting and beginning to generate.

added the ability to use {prompt} in styles
added a button to apply style to textbox
rearranged top row for UI

loopback moved to scripts, added support for multiple batches, changed to honor save grids and how grids in web setting