Fixed blank inspectors due to new contextIsolation default value (#2321)

* Fixed blank inspectors due to new contextIsolation default value in Electron 13

* Added changelog entry

Author: tonyanziano

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Added
 - [main] Bumped `electron` to v13.6.1 in PR [2318](https://github.com/microsoft/BotFramework-Emulator/pull/2318)
 - [main] Fixed early restify route termination in `replyToActivity` handler in PR [2320](https://github.com/microsoft/BotFramework-Emulator/pull/2320)
+- [client] Set `contextIsolation` to `false` in Inspector `<webview>` elements in PR [2321](https://github.com/microsoft/BotFramework-Emulator/pull/2321)
 
 ## v4.14.0 - 2021 - 7 - 15
 ## Added

packages/app/client/src/ui/editor/emulator/parts/inspector/inspector.tsx

@@ -358,6 +358,7 @@ export class Inspector extends React.Component<InspectorProps, InspectorState> {
     webView.setAttribute('partition', `persist:${state.botHash}`);
     webView.setAttribute('preload', state.inspector.preloadPath);
     webView.setAttribute('src', encodeURI(state.inspector.src));
+    webView.setAttribute('webPreferences', `contextIsolation=no`);
     return webView;
   }