feat: Support model deletion function in "Extra Network" model viewer.
fix: "Download all files" now working as expect.
fix: Auto select newest version when load model info from url.
fix: Auto select default '/' folder when load model info from url.
feat: Press "`" key to toggle "Extra Network" model viewer under "img2img" and "txt2img" tab.
feat: Press "x" key to fast paste Civitai model url and load model info under "Civitai Helper" tab,then click "Download Model".
feat: Press "ctrl + x" keys trigger model generate.
refact: Move scripted css to style.css and other style adjusts.