simplify label

packages/app/public/static/locales/en_US/commons.json

@@ -100,7 +100,7 @@
 
   "g2g_data_transfer": {
     "tab": "Data transfer",
-    "data_transfer": "GROWI To GROWI Data Transfer",
+    "data_transfer": "Data Transfer",
     "transfer_data_to_this_growi": "Transfer data from another GROWI to this GROWI",
     "publish_transfer_key": "Publish transfer key",
     "transfer_key_limit": "Transfer keys are valid for 1 hour after issuance.",

packages/app/public/static/locales/ja_JP/commons.json

@@ -100,7 +100,7 @@
 
   "g2g_data_transfer": {
     "tab": "データ移行",
-    "data_transfer": "別GROWIとのデータ移行",
+    "data_transfer": "データ移行",
     "transfer_data_to_this_growi": "別GROWIのデータをこのGROWIへ移行する",
     "publish_transfer_key": "移行キーを発行する",
     "transfer_key_limit": "※ 移行キーの有効期限は発行から1時間となります。",

packages/app/public/static/locales/zh_CN/commons.json

@@ -100,7 +100,7 @@
 
   "g2g_data_transfer": {
     "tab": "数据迁移",
-    "data_transfer": "与另一个GROWI的数据转移",
+    "data_transfer": "数据迁移",
     "transfer_data_to_this_growi": "将数据从另一个GROWI迁移到这个GROWI上",
     "publish_transfer_key": "发布迁移密钥",
     "transfer_key_limit": "迁移密钥在签发后一小时内有效。",