feat(electron): multi tabs support (#7440)

use https://www.electronjs.org/docs/latest/api/web-contents-view to serve different tab views
added tabs view manager in electron to handle multi-view actions and events.

fix AF-1111
fix AF-999
fix PD-1459
fix AF-964
PD-1458

tools/cli/src/config/index.ts

@@ -4,5 +4,5 @@ export type BuildFlags = {
   channel: 'stable' | 'beta' | 'canary' | 'internal';
   coverage?: boolean;
   localBlockSuite?: string;
-  entry?: string;
+  entry?: string | { [key: string]: string };
 };