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/bin/dev.ts

@@ -111,7 +111,10 @@ const cwd = getCwdFromDistribution(flags.distribution);
 process.env.DISTRIBUTION = flags.distribution;
 
 if (flags.distribution === 'desktop') {
-  flags.entry = join(cwd, 'index.tsx');
+  flags.entry = {
+    app: join(cwd, 'index.tsx'),
+    shell: join(cwd, 'shell/index.tsx'),
+  };
 }
 
 if (buildFlags.debugBlockSuite) {