Build: bundle / concat entry points (#161161)

* perf - concatenate windows main files

* Revert "Revert "Use `esbuild` to bundle some CommonJS main files (#160957)" (#161118)"

This reverts commit 84c46b71a5.

* build - exclude server main files

* build - make concat a task that runs like the others

* some renames

* Avoid overwriting the nodejs closure require

* Revert "build - exclude server main files"

This reverts commit 736516624e.

Co-authored-by: Alex Dima <alexdima@microsoft.com>

.vscode/launch.json

@@ -29,7 +29,7 @@
 			"name": "Attach to Shared Process",
 			"timeout": 30000,
 			"port": 9222,
-			"urlFilter": "*sharedProcess.html*",
+			"urlFilter": "*sharedProcess*.html*",
 			"presentation": {
 				"hidden": true
 			}
@@ -236,7 +236,7 @@
 				"VSCODE_SKIP_PRELAUNCH": "1"
 			},
 			"cleanUp": "wholeBrowser",
-			"urlFilter": "*workbench.html*",
+			"urlFilter": "*workbench*.html*",
 			"runtimeArgs": [
 				"--inspect-brk=5875",
 				"--no-cached-data",