Add client context.

src/redux/reducers/server_config.ts

@@ -0,0 +1,20 @@
+import { Core } from "revolt.js/dist/api/objects";
+
+export type ConfigAction =
+    | { type: undefined }
+    | {
+        type: "SET_CONFIG";
+        config: Core.RevoltNodeConfiguration;
+      };
+
+export function config(
+    state = { } as Core.RevoltNodeConfiguration,
+    action: ConfigAction
+): Core.RevoltNodeConfiguration {
+    switch (action.type) {
+        case "SET_CONFIG":
+            return action.config;
+        default:
+            return state;
+    }
+}