feat: fix a lot of small changes to match cb, add functionality for all plans, add tests for the new plan editor. even more i dont really know anymore.

ref: N25B-412

src/components/TextField.tsx

@@ -63,7 +63,7 @@ export function RealtimeTextField({
     readOnly={readOnly}
     id={id}
     // ReactFlow uses the "drag" / "nodrag" classes to enable / disable dragging of nodes
-    className={`${readOnly ? "drag" : "nodrag"} ${styles.textField} ${invalid ? styles.invalid : ""} ${className}`}
+    className={`${readOnly ? "drag" : "nodrag"} flex-1 ${styles.textField} ${invalid ? styles.invalid : ""} ${className}`}
     aria-label={ariaLabel}
   />;
 }