Feature: implemented bru.interpolate (#4122)

* feat: enhance variable highlighting in CodeMirror and update interpolation method

* feat: add interpolate function to bru shim and corresponding tests

- Implemented the `interpolate` function in the bru shim to handle variable interpolation.
- Added a new test case for the `interpolate` function to verify its functionality with mock variables.

* feat: enhance interpolate function to support object interpolation

* feat: add translation support for pm.variables.replaceIn to bru.interpolate

* revert: eslint config changes

* revert: eslint config changes

* fix: update method call to use correct interpolation function in Bru class

* refactor: added jsdoc to codemirror highlighting code

* fix: higlighting for multiline editor

packages/bruno-app/src/components/RequestPane/GraphQLVariables/index.js

@@ -67,6 +67,7 @@ const GraphQLVariables = ({ variables, item, collection }) => {
         mode="javascript"
         onRun={onRun}
         onSave={onSave}
+        enableVariableHighlighting={true}
       />
     </>
   );