Add long-press URL copy and snackbar message

assets/translations/zh.json

@@ -208,6 +208,7 @@
     "addCategory": "添加类别",
     "label": "标签",
     "language": "语言",
+    "copiedToClipboard": "Copied to Clipboard",
     "storagePermissionDenied": "存储权限已被拒绝",
     "selectedCategorizeWarning": "这将取代所选应用程序的任何现有类别",
     "filterAPKsByRegEx": "Filter APKs by Regular Expression",
@@ -269,4 +270,4 @@
         "one": "{} 和 {} 更多应用已被安装",
         "other": "{} 和 {} 更多应用已被安装"
     }
-}
+}