fix: body styling issue

Author: eshankvaish

index.css

@@ -3,18 +3,20 @@
  * the theme is same as the system theme.
  */
 :root {
-    --bg-loading-screen: #f2f4f7;
+    /* Using the same name as in color palette to ensure this is applied when styles are loading */
+    --bg-tertiary: #f2f4f7;
     --bg-devtron-loader: #e5f2ff;
     --fill-devtron-loader: #0066cc;
 
 
     @media (prefers-color-scheme: dark) {
-        --bg-loading-screen: #0d0f1c;
+        --bg-tertiary: #0d0f1c;
         --bg-devtron-loader: #172433;
         --fill-devtron-loader: #74B5FF;
     }
 }
 
 body {
-    background: var(--bg-loading-screen);
+    margin: 0;
+    background: var(--bg-tertiary);
 }