chore: move to patches (#4997)

* Move integration types into code-server

This will be easier to maintain than to have it as a patch.

* Disable connection token

Using a flag means we will not need to patch it out.  I think this is
new from 1.64?

* Add product.json to build process

This way we do not have to patch it.

* Ship with remote agent package.json

Instead of the root one.  This contains fewer dependencies.

* Let Code handle errors

This way we will not have to patch Code to make this work and I think it
makes sense to let Code handle the request.

If we do want to handle errors we can do it cleanly by patching their
error handler to throw instead.

* Move manifest override into code-server

This way we will not have to patch it.

* Move to patches

- Switch submodule to track upstream
- Add quilt to the process
- Add patches

The node-* ignore was ignoring one of the diffs so I removed it.  This
was added when we were curling Node as node-v{version}-darwin-x64 for
the macOS build but this no longer happens (we use the Node action to
install a specific version now so we just use the system-wide Node).

* Use pre-packaged Code

patches/last-opened.diff

@@ -0,0 +1,32 @@
+Remove last opened functionality
+
+This conflicts with our own handling of the last opened workspace.  If we wanted
+to switch to this we would need to pass through the disable-last-opened flag and
+respect it here then remove our own redirction code that handles this.
+
+Our version might be better anyway since it puts the workspace in the URL.
+
+Index: code-server/lib/vscode/src/vs/code/browser/workbench/workbench.ts
+===================================================================
+--- code-server.orig/lib/vscode/src/vs/code/browser/workbench/workbench.ts
++++ code-server/lib/vscode/src/vs/code/browser/workbench/workbench.ts
+@@ -350,19 +350,6 @@ class WorkspaceProvider implements IWork
+ 				workspace = { folderUri: URI.revive(config.folderUri) };
+ 			} else if (config.workspaceUri) {
+ 				workspace = { workspaceUri: URI.revive(config.workspaceUri) };
+-			} else {
+-				workspace = (() => {
+-					const lastWorkspaceRaw = window.localStorage.getItem(WorkspaceProvider.LAST_WORKSPACE_STORAGE_KEY);
+-					if (lastWorkspaceRaw) {
+-						try {
+-							return parse(lastWorkspaceRaw); // use marshalling#parse() to revive potential URIs
+-						} catch (error) {
+-							// Ignore
+-						}
+-					}
+-
+-					return undefined;
+-				})();
+ 			}
+ 		}
+