New channel config (#807)

* Channel config rework

Add staged channel config with tabbed UI, import/export workflow, and global form state refactor

* Improve import dialog config comparison and UI labels

* Review fixes

* Improve state handling

* Fix default filter behaviour

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Co-authored-by: philon- <philon-@users.noreply.github.com>

packages/web/public/i18n/locales/en/ui.json

@@ -4,9 +4,10 @@
     "messages": "Messages",
     "map": "Map",
     "config": "Config",
+    "channels": "Channels",
     "radioConfig": "Radio Config",
     "moduleConfig": "Module Config",
-    "channels": "Channels",
+    "channelConfig": "Channel Config",
     "nodes": "Nodes"
   },
   "app": {
@@ -67,6 +68,10 @@
       "title": "Saving Config",
       "description": "The configuration change {{case}} has been saved."
     },
+    "saveAllSuccess": {
+      "title": "Saved",
+      "description": "All configuration changes have been saved."
+    },
     "favoriteNode": {
       "title": "{{action}} {{nodeName}} {{direction}} favorites.",
       "action": {