fixed icons

Author: manfred-kaiser

doc/_static/assets/css/toctree-icons.css

@@ -1,35 +1,29 @@
 #docs-nav .toctree-l1:nth-child(1):before,
 #docs-cards .toctree-l1:nth-child(1) i:before {
     font-family: FontAwesome;
-    content: "\f3e2";
+    content: "\f135";
 }
 
 #docs-nav .toctree-l1:nth-child(2):before,
 #docs-cards .toctree-l1:nth-child(2) i:before {
     font-family: FontAwesome;
-    content: "\f135";
+    content: "\f0e8";
 }
 
 #docs-nav .toctree-l1:nth-child(3):before,
 #docs-cards .toctree-l1:nth-child(3) i:before {
     font-family: FontAwesome;
-    content: "\f0e8";
+    content: "\f542";
 }
 
 #docs-nav .toctree-l1:nth-child(4):before,
 #docs-cards .toctree-l1:nth-child(4) i:before {
     font-family: FontAwesome;
-    content: "\f542";
+    content: "\f714";
 }
 
 #docs-nav .toctree-l1:nth-child(5):before,
 #docs-cards .toctree-l1:nth-child(5) i:before {
-    font-family: FontAwesome;
-    content: "\f714";
-}
-
-#docs-nav .toctree-l1:nth-child(6):before,
-#docs-cards .toctree-l1:nth-child(6) i:before {
     font-family: FontAwesome;
     content: "\f505";
 }