refactor: optimize delay between batches on mobile to allow UI interactivity during load (#2129)

packages/snjs/lib/Application/Application.ts

@@ -1581,6 +1581,7 @@ export class SNApplication implements ApplicationInterface, AppGroupManagedAppli
       this.identifier,
       {
         loadBatchSize: this.options.loadBatchSize,
+        sleepBetweenBatches: this.options.sleepBetweenBatches,
       },
       this.internalEventBus,
     )

packages/snjs/lib/Application/Options/Defaults.ts

@@ -1,9 +1,15 @@
-import { ApplicationSyncOptions } from './OptionalOptions'
+import { ApplicationDisplayOptions, ApplicationSyncOptions } from './OptionalOptions'
 
 export interface ApplicationOptionsWhichHaveDefaults {
   loadBatchSize: ApplicationSyncOptions['loadBatchSize']
+  sleepBetweenBatches: ApplicationSyncOptions['sleepBetweenBatches']
+  allowNoteSelectionStatePersistence: ApplicationDisplayOptions['allowNoteSelectionStatePersistence']
+  allowMultipleSelection: ApplicationDisplayOptions['allowMultipleSelection']
 }
 
 export const ApplicationOptionsDefaults: ApplicationOptionsWhichHaveDefaults = {
   loadBatchSize: 700,
+  sleepBetweenBatches: 10,
+  allowMultipleSelection: true,
+  allowNoteSelectionStatePersistence: true,
 }

packages/snjs/lib/Application/Options/OptionalOptions.ts

@@ -3,10 +3,14 @@ export interface ApplicationSyncOptions {
    * The size of the item batch to decrypt and render upon application load.
    */
   loadBatchSize: number
+
+  sleepBetweenBatches: number
 }
 
-// eslint-disable-next-line @typescript-eslint/no-empty-interface
-export interface ApplicationDisplayOptions {}
+export interface ApplicationDisplayOptions {
+  allowNoteSelectionStatePersistence: boolean
+  allowMultipleSelection: boolean
+}
 
 export interface ApplicationOptionalConfiguratioOptions {
   /**