[frameworks] Rename frameworks to now-frameworks (#3569)

* [frameworks] Rename frameworks to now-frameworks

* Adjust .nowignore

.nowignore

@@ -13,5 +13,5 @@
 
 # packages
 !packages/
-!packages/frameworks
+!packages/now-frameworks
-!packages/frameworks/**
+!packages/now-frameworks/**

api/_lib/examples/example-list.ts

@@ -1,4 +1,4 @@
-import Frameworks, { Framework } from '../../../packages/frameworks';
+import Frameworks, { Framework } from '../../../packages/now-frameworks';
 
 interface Example {
   example: string;