chore: upgrade theme to 0.3.1 (#468)

Author: jbroma

pnpm-lock.yaml

@@ -8,7 +8,7 @@
     "preview": "rspress preview"
   },
   "dependencies": {
-    "@callstack/rspress-theme": "^0.3.0",
+    "@callstack/rspress-theme": "^0.3.1",
     "@rspress/plugin-llms": "2.0.0-beta.21",
     "rsbuild-plugin-open-graph": "^1.0.2",
     "rspress": "2.0.0-beta.21",