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/src/validation/channel.ts

@@ -35,3 +35,6 @@ export function makeChannelSchema(allowedBytes: number) {
     role: RoleEnum,
   });
 }
+
+const ChannelValidationSchema = makeChannelSchema(0); // generate a schema that doesn't validate PSK length, just structure, for type purposes
+export type ChannelValidation = z.infer<typeof ChannelValidationSchema>;