fix: improve forced-colors toggle contrast

Author: RYGRIT

app/assets/main.css

@@ -184,17 +184,24 @@
   /* Settings page: make toggle tracks and thumb visible in forced colors. */
   button[role='switch'] > span:last-of-type {
     forced-color-adjust: none;
-    background: ButtonFace;
-    border-color: ButtonText;
+  }
+
+  button[role='switch'][aria-checked='false'] > span:last-of-type {
+    background: Canvas;
+    border-color: CanvasText;
+  }
+
+  button[role='switch'][aria-checked='false'] > span:last-of-type > span {
+    background: CanvasText;
   }
 
   button[role='switch'][aria-checked='true'] > span:last-of-type {
     background: Highlight;
     border-color: Highlight;
   }
 
-  button[role='switch'] > span:last-of-type > span {
-    background: Canvas;
+  button[role='switch'][aria-checked='true'] > span:last-of-type > span {
+    background: HighlightText;
   }
 
   /* Homepage tag dots are custom spans, not list markers. */