build(ui): export loading component

Author: psychedelicious

invokeai/frontend/web/src/index.ts

@@ -32,6 +32,7 @@ export { default as InvokeAIUI } from './app/components/InvokeAIUI';
 export type { StudioInitAction } from './app/hooks/useStudioInitAction';
 export type { LoggingOverrides } from './app/logging/logger';
 export type { PartialAppConfig } from './app/types/invokeai';
+export { default as Loading } from './common/components/Loading/Loading';
 export { default as HotkeysModal } from './features/system/components/HotkeysModal/HotkeysModal';
 export { default as InvokeAiLogoComponent } from './features/system/components/InvokeAILogoComponent';
 export { default as SettingsModal } from './features/system/components/SettingsModal/SettingsModal';