move devtools styles in rem

Author: Vijaykv5

packages/apps/esm-devtools-app/src/devtools/devtools.styles.css

@@ -1,12 +1,12 @@
 .devtoolsTriggerButton {
   z-index: 7900;
   background-color: #c6c6c6;
-  height: 40px !important;
-  width: 40px !important;
-  bottom: 80px;
-  right: 4px;
+  height: 2.5rem !important;
+  width: 2.5rem !important;
+  bottom: 5rem;
+  right: 0.25rem;
   position: fixed;
-  border-radius: 5px;
+  border-radius: 0.25rem;
   display: flex;
   justify-content: center;
   align-items: center;