Raise Web implementation limits for imports and exports

At the CG meeting today (July 16, 2024), we had unanimous consensus to raise the limits on the number of imports and exports on the Web to 1,000,000. See WebAssembly/design#1520 for context.

document/js-api/index.bs

@@ -1273,8 +1273,8 @@ In practice, an implementation may run out of resources for valid modules below
 <li>The maximum size of a module is 1,073,741,824 bytes (1 GiB).</li>
 <li>The maximum number of types defined in the types section is 1,000,000.</li>
 <li>The maximum number of functions defined in a module is 1,000,000.</li>
-<li>The maximum number of imports declared in a module is 100,000.</li>
-<li>The maximum number of exports declared in a module is 100,000.</li>
+<li>The maximum number of imports declared in a module is 1,000,000.</li>
+<li>The maximum number of exports declared in a module is 1,000,000.</li>
 <li>The maximum number of globals defined in a module is 1,000,000.</li>
 <li>The maximum number of data segments defined in a module is 100,000.</li>