Snag/disable logo drag (Stirling-Tools#6393)

Author: EthanHealy01

frontend/src/core/styles/index.css

@@ -15,6 +15,11 @@ body {
   -moz-osx-font-smoothing: grayscale;
 }
 
+img {
+  -webkit-user-drag: none;
+  user-drag: none;
+}
+
 code {
   font-family:
     source-code-pro, Menlo, Monaco, Consolas, "Courier New", monospace;