Export data for the universal export as a single zip archive

Summary:
Design doc: https://docs.google.com/document/d/1HLCFl46RfqG0o1mSt8SWrwf_HMfOCRg_oENioc1rkvQ/edit#

It is better UX not to prompt a user multiple times to save various pieces of the debug export

Reviewed By: passy

Differential Revision: D40550084

fbshipit-source-id: 51ea3acee7daf5074682219020e1e1eed2182b7d

desktop/flipper-common/src/server-types.tsx

@@ -162,10 +162,18 @@ export interface FSStatsLike {
   birthtimeMs: number;
 }
 
+export interface DeviceDebugFile {
+  path: string;
+  data: string;
+}
+export interface DeviceDebugCommand {
+  command: string;
+  result: string;
+}
 export interface DeviceDebugData {
   serial: string;
   appId: string;
-  data: ({path: string; data: string} | {command: string; result: string})[];
+  data: (DeviceDebugFile | DeviceDebugCommand)[];
 }
 
 export type FlipperServerCommands = {