misc: update import for frameqork7-vue

Author: Pooya Parsa

lib/templates/f7-plugin.js

@@ -1,5 +1,5 @@
 import Vue from 'vue'
-import { Framework7Vue } from 'framework7-vue'
+import Framework7Vue from 'framework7-vue'
 
 import { routes } from './f7-router'
 import Framework7VueComponents from './f7-components'