refactor(renterd): improve uploads performance

Author: alexfreska

.changeset/chilled-days-live.md

@@ -0,0 +1,5 @@
+---
+'renterd': minor
+---
+
+The application no longer lags when uploading thousands of files.

.changeset/itchy-paws-call.md

@@ -0,0 +1,5 @@
+---
+'@siafoundation/react-core': minor
+---
+
+Added useThrottledStateMap.

.changeset/light-ravens-own.md

@@ -0,0 +1,5 @@
+---
+'@siafoundation/react-core': minor
+---
+
+Added `throttle`, often useful for mutation callbacks.

apps/renterd/contexts/filesManager/types.ts

@@ -85,7 +85,8 @@ export type ExplorerMode = 'directory' | 'flat'
 export type UploadStatus = 'queued' | 'uploading' | 'processing'
 
 export type ObjectUploadData = ObjectData & {
-  upload?: MultipartUpload
+  multipartId?: string
+  multipartUpload?: MultipartUpload
   uploadStatus: UploadStatus
   uploadAbort?: () => Promise<void>
   uploadFile?: File