feat: WebUI Improvements! (#133)

- Has all latest config values
- Opens automatically in the web browser
- Handles magic constants like, "all models", "top 5", etc
- Future proof: Does not remove config file items it doesn't understand
- Everything has labels and descriptions
- Descriptions all mention the actual underlying technical config file item name
- `--share` command line option to get a Gradio public URL
- `--no-browser` command line option to NOT open in browser
- `--lan` command line option to allow access on the local network
- Can exit the application now with Ctrl+C
- Display max_power as Max Image Size and show 512x512, 768x768, etc
- Re-implement functionality to enable/disable maintenance mode.
- Support editing config in a text editor _and_ the webui at the same time without losing any config.

bridge-webui.cmd

@@ -1,4 +1,3 @@
 @echo off
 cd /d %~dp0
 call runtime python -s webui.py %*
-%0 %*