fix(nextjs-mf): do not crash if host is not next (#2604)

Co-authored-by: ScriptedAlchemy <[email protected]>

Author: ScriptedAlchemy

.changeset/ten-apples-kneel.md

@@ -0,0 +1,5 @@
+---
+'@module-federation/nextjs-mf': patch
+---
+
+Do not crash on share resolver if host is not next

packages/nextjs-mf/src/plugins/container/runtimePlugin.ts

@@ -177,6 +177,11 @@ export default function (): FederationRuntimePlugin {
       if (!host) {
         return args;
       }
+
+      if (!host.options.shared[pkgName]) {
+        return args;
+      }
+
       args.resolver = function () {
         shareScopeMap[scope][pkgName][version] =
           host.options.shared[pkgName][0]; // replace local share scope manually with desired module