feat: storage module refactor + UI fixes

server/modules/storage/s3/definition.yml

@@ -0,0 +1,8 @@
+key: s3
+title: Amazon S3
+author: requarks.io
+props:
+  accessKeyId: String
+  accessSecret: String
+  region: String
+  bucket: String

server/modules/storage/s3/storage.js

@@ -0,0 +1,23 @@
+module.exports = {
+  async activated(opts) {
+
+  },
+  async deactivated(opts) {
+
+  },
+  async init(opts) {
+
+  },
+  async created(opts) {
+
+  },
+  async updated(opts) {
+
+  },
+  async deleted(opts) {
+
+  },
+  async renamed(opts) {
+
+  }
+}