Feat: Create empty document. #3221 (#7343)

### What problem does this PR solve?

Feat: Create empty document. #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/tailwind.css

@@ -71,6 +71,8 @@
     --sidebar-accent-foreground: 240 5.9% 10%;
     --sidebar-border: 220 13% 91%;
     --sidebar-ring: 217.2 91.2% 59.8%;
+
+    --background-inverse-strong: rgba(255, 255, 255, 0.15);
   }
 
   .dark {