prevent  previews from ruining hypernetwork training

AMD environment variable and experimental APU support (Renoir)

Adds descriptions for merging methods in UI

Fixes ui issues with checkbox and hires. sections

X/Y plot: Fix auto fill and repair separate axis options

Compile and serve js files via `src` instead of embedded inline scripts

update readme to reflect some recent changes

prevent extra network tabs from putting images into wrong prompts
prevent settings leaking into prompt

remove random artist built-in extension (to re-added as a normal extension on demand)
remove artists.csv (but what does it mean????????????????????)
make interrogate buttons show Loading... when you click them

rework of hypernets: rather than via settings, hypernets are added directly to prompt as <hypernet:name:weight>

Experimental support for AMD Renoir

This adds the GFX version 9.0.0 in order to use Renoir GPUs with at least 4 GB of VRAM (it's possible to increase the virtual VRAM from the BIOS settings of some vendors). This will only work if the remaining ram is at least 12 GB to avoid the system to become unresponsive on launch.).
This change also changes the GPU check to a case statement to be able to add more GPUs efficiently.

This commit specifies which GPUs should use the GFX variable, RDNA 3 is excluded since it uses a newer GFX version