Implemented review comments

Author: pravesh-sharma

web/pgadmin/static/js/components/ReactCodeMirror/CustomEditorView.js

@@ -205,6 +205,12 @@ export default class CustomEditorView extends EditorView {
     return this.state.selection.ranges.map((range)=>this.state.sliceDoc(range.from, range.to)).join(lineSep) ?? '';
   }
 
+  static getSelectionFromState(state) {
+    // function to get selection from EditorState
+    const lineSep = state.facet(eol);
+    return state.selection.ranges.map((range)=>state.sliceDoc(range.from, range.to)).join(lineSep) ?? '';
+  }
+
   replaceSelection(newValue) {
     this.dispatch(this.state.changeByRange(range => ({
       changes: { from: range.from, to: range.to, insert: newValue },

web/pgadmin/static/js/components/ReactCodeMirror/components/Editor.jsx

@@ -157,9 +157,7 @@ const defaultExtensions = [
   }),
   autoCompleteCompartment.of([]),
   EditorView.clipboardOutputFilter.of((text, state)=>{
-    const lineSep = state.facet(eol);
-    // Fetch the selection range from the editor's current state.
-    return state.selection.ranges.map((range)=>state.sliceDoc(range.from, range.to)).join(lineSep) ?? '';
+    return CustomEditorView.getSelectionFromState(state);
   })
 ];