Remove custom theme icons (#1731)

mkdocs.yml

@@ -12,19 +12,19 @@ copyright: |
 
 extra:
   social:
-    - icon: pg/matrix
+    - icon: simple/matrix
       link: https://matrix.to/#/#privacyguides:matrix.org
       name: Matrix
-    - icon: fontawesome/brands/reddit-alien
+    - icon: simple/reddit
       link: https://reddit.com/r/PrivacyGuides
       name: Reddit
-    - icon: fontawesome/brands/mastodon
+    - icon: simple/mastodon
       link: https://mastodon.social/@privacyguides
       name: Mastodon
-    - icon: fontawesome/brands/twitter
+    - icon: simple/twitter
       link: https://twitter.com/privacy_guides
       name: Twitter
-    - icon: fontawesome/brands/github
+    - icon: simple/github
       link: https://github.com/privacyguides
       name: GitHub
 repo_url: https://github.com/privacyguides/privacyguides.org
@@ -37,7 +37,7 @@ theme:
   logo: assets/brand/SVG/Logo/privacy-guides-logo-notext-colorbg.svg
   favicon: assets/brand/PNG/Favicon/favicon-32x32.png
   icon:
-    repo: fontawesome/brands/github
+    repo: simple/github
   font: false
   features:
     - navigation.tracking
@@ -47,12 +47,12 @@ theme:
     - scheme: default
       accent: deep purple
       toggle:
-        icon: hero/sun
+        icon: material/brightness-5
         name: Switch to dark mode
     - scheme: slate
       accent: amber
       toggle:
-        icon: hero/moon
+        icon: material/brightness-2
         name: Switch to light mode
 
 watch: