fix v1.37.3: true dashed open boundary, rendered above the glow

- outlineWithout trims the rooms' solid strokes under open stretches
  (.room.noedge kills the polygon stroke incl. hover; trimmed
  .room-outline path draws the remaining walls)
- dash color follows the space stroke color; openwalls layer moved
  after the glow layer
- +1 unit test (105); smoke_openwall extended; docs same-commit

package.json

@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.37.2",
+  "version": "1.37.3",
   "description": "Interactive house plan Lovelace card for Home Assistant",
   "license": "MIT",
   "type": "module",