add configuration types

Author: pulkitsharma07

client/src/lib/configurationTypes.ts

@@ -0,0 +1,8 @@
+export type ConfigItem = {
+  description: string;
+  value: string | number | boolean;
+}
+
+export type InspectorConfig = {
+  MCP_SERVER_REQUEST_TIMEOUT: ConfigItem;
+};