app: use session_working helper to simplify loading states (#27212)

packages/app/src/context/global-sync/child-store.ts

@@ -208,6 +208,9 @@ export function createChildStoreManager(input: {
             session: [],
             sessionTotal: 0,
             session_status: {},
+            session_working(id: string) {
+              return this.session_status[id].type !== "idle"
+            },
             session_diff: {},
             todo: {},
             permission: {},

packages/app/src/context/global-sync/types.ts

@@ -46,6 +46,7 @@ export type State = {
   session_status: {
     [sessionID: string]: SessionStatus
   }
+  session_working(id: string): boolean
   session_diff: {
     [sessionID: string]: SnapshotFileDiff[]
   }