reworked launching with different parameters

Some typos

Fix webui.bat ignoring cmd line arguments, fix output img overflowing

Fixed typos in JavaScript descriptions

More informative progress printing

Turn the loopback denoising strength change factor into a parameter rather than hardcoding to 0.95. Set the default to 1.

load scripts earlier to get errors before model loads

Turn the loopback denoise strength change factor into a parameter rather than hardcoding to 0.95. Set the default to 1.

Add settings file

Signed-off-by: Daniel Grenner <daniel.grenner@ingka.ikea.com>

--port option for #131

defaults to 7860