Update favicons and add new state bar images

- Updated web app manifest icons: web-app-manifest-192x192.png and web-app-manifest-512x512.png.
- Added new images for web SSH state bar: webssh-state-bar-dots-nobg.png and webssh-state-bar-nobg.png.

Author: isontheline

_config.yml

@@ -86,7 +86,7 @@ theme_mode: # [light | dark]
 cdn:
 
 # the avatar on sidebar, support local or CORS resources
-avatar: /assets/img/webssh-state-bar-dots.png
+avatar: /assets/img/webssh-state-bar-dots-nobg.png
 
 # The URL of the site-wide social preview image used in SEO `og:image` meta tag.
 # It can be overridden by a customized `page.image` in front matter.

assets/css/custom.css

@@ -1,3 +1,8 @@
 kbd a {
   border-bottom: none !important;
 }
+
+#avatar {
+  border: none !important;
+  box-shadow: none !important;
+}