feat: request variables (#3825)

Co-authored-by: jamesgeorge007 <jamesgeorge998001@gmail.com>

packages/hoppscotch-common/src/composables/codemirror.ts

@@ -243,7 +243,7 @@ export function useCodemirror(
       if (from === to) return
       const text = view.value?.state.doc.sliceString(from, to)
       const { top, left } = view.value?.coordsAtPos(from)
-      if (text) {
+      if (text?.trim()) {
         invokeAction("contextmenu.open", {
           position: {
             top,