fix(street-level): four regressions from the merge review

- The selected sequence is drawn past the per-tile caps again, and its
  highlight takes every loaded part, drawn or not: in a dense tile a
  clicked Mapillary or Panoramax line kept its cones but lost its line.
- photoViewer tries :fullscreen and :popover-open one at a time, each in
  its own try: Safari before 16.4 parses neither, and the fallback threw
  on every flat KartaView or Panoramax photo.
- A lit Street View off Google 3D says it needs the Google 3D map again,
  instead of "every provider is switched off".
- Chips carry their provider colour again (--chip-color, as on main).

Each comes with the test that reproduced it.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/ui/streetLevelControls.test.mjs

@@ -57,7 +57,15 @@ class FakeNode {
         return on;
       },
     };
-    this.style = {};
+    const style = {};
+    this.style = Object.assign(style, {
+      setProperty: (key, value) => {
+        style[key] = value;
+      },
+      removeProperty: (key) => {
+        delete style[key];
+      },
+    });
     Object.defineProperty(this, 'className', {
       get: () => [...names].join(' '),
       set: (value) => {