Update text for foreground backup to make things clearer

mobile/assets/i18n/en-US.json

@@ -46,7 +46,7 @@
   "backup_controller_page_backup_sub": "Backed up photos and videos",
   "backup_controller_page_cancel": "Cancel",
   "backup_controller_page_created": "Created on: {}",
-  "backup_controller_page_desc_backup": "Turn on backup to automatically upload new assets to the server.",
+  "backup_controller_page_desc_backup": "Turn on foreground backup to automatically upload new assets to the server when opening the app.",
   "backup_controller_page_excluded": "Excluded: ",
   "backup_controller_page_failed": "Failed ({})",
   "backup_controller_page_filename": "File name: {} [{}]",
@@ -58,14 +58,14 @@
   "backup_controller_page_select": "Select",
   "backup_controller_page_server_storage": "Server Storage",
   "backup_controller_page_start_backup": "Start Backup",
-  "backup_controller_page_status_off": "Backup is off",
-  "backup_controller_page_status_on": "Backup is on",
+  "backup_controller_page_status_off": "Automatic foreground backup is off",
+  "backup_controller_page_status_on": "Automatic foreground backup is on",
   "backup_controller_page_storage_format": "{} of {} used",
   "backup_controller_page_to_backup": "Albums to be backup",
   "backup_controller_page_total": "Total",
   "backup_controller_page_total_sub": "All unique photos and videos from selected albums",
-  "backup_controller_page_turn_off": "Turn off Backup",
-  "backup_controller_page_turn_on": "Turn on Backup",
+  "backup_controller_page_turn_off": "Turn off foreground backup",
+  "backup_controller_page_turn_on": "Turn on foreground backup",
   "backup_controller_page_uploading_file_info": "Uploading file info",
   "backup_err_only_album": "Cannot remove the only album",
   "backup_info_card_assets": "assets",
@@ -175,4 +175,4 @@
   "experimental_settings_new_asset_list_title": "Enable experimental photo grid",
   "experimental_settings_new_asset_list_subtitle": "Work in progress",
   "settings_require_restart": "Please restart Immich to apply this setting"
-}
+}