Set vscode navigate backwards to be scoped to the editor.

nix/configuration/roles/vscode/files/keybindings.json

@@ -20,6 +20,12 @@
         "command": "-workbench.action.navigateBack",
         "when": "canNavigateBack"
     },
+  {
+    // This isn't quite right. In emacs it would go back to the last location you performed an action which could include navigation. This goes back to the place where you last changed the text. Either way, close enough.
+        "key": "ctrl+x ctrl+x",
+        "command": "workbench.action.navigateToLastEditLocation",
+        "when": "canNavigateToLastEditLocation"
+    },
     {
         "key": "shift+alt+/",
         "command": "editor.action.goToReferences",