ux v1.38.3: true dashed open boundaries in the Plan editor too

- room outline trimming applies in markup (blue .room-outline.outlined);
  merge/split-picked rooms keep the full amber stroke
- smoke_openwall extended (14 checks); TESTING/CHANGELOG same-commit

custom_components/houseplan/manifest.json

@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.38.2"
+  "version": "1.38.3"
 }