fix: deterministic stagger, lint importmap/module, cache-bust previews

- Replace from:"random" with from:"center" stagger in us-map,
  world-map, spain-map — random stagger is non-deterministic across
  parallel render workers, causing visual jumps at chunk boundaries.

- Exempt type="importmap" and type="module" inline scripts from the
  invalid_inline_script_syntax lint rule. The rule used new Function()
  to parse, which rejects import statements and JSON import maps.
  Closes #929.

- Cache-bust all map MDX preview video URLs after re-rendering with
  the deterministic stagger fix.

registry/blocks/spain-map/spain-map.html

@@ -311,7 +311,7 @@
                 duration: 0.4,
                 stagger: {
                   each: 0.08,
-                  from: "random",
+                  from: "center",
                 },
                 ease: "back.out(1.4)",
               },
@@ -325,7 +325,7 @@
                 duration: 0.3,
                 stagger: {
                   each: 0.05,
-                  from: "random",
+                  from: "center",
                 },
                 ease: "power2.out",
               },

registry/blocks/us-map/us-map.html

@@ -331,7 +331,7 @@
                 duration: 0.4,
                 stagger: {
                   each: 0.06,
-                  from: "random",
+                  from: "center",
                 },
                 ease: "back.out(1.4)",
               },
@@ -345,7 +345,7 @@
                 duration: 0.3,
                 stagger: {
                   each: 0.04,
-                  from: "random",
+                  from: "center",
                 },
                 ease: "power2.out",
               },

registry/blocks/world-map/world-map.html

@@ -370,7 +370,7 @@
               duration: 0.3,
               stagger: {
                 each: 0.02,
-                from: "random"
+                from: "center"
               },
               ease: "power1.out"
             },