[breaking change] Actionsheet: rename to ActionSheet

types/index.d.ts

@@ -10,7 +10,7 @@ import { ImagePreview } from './image-preview';
 
 export const version: string;
 export function install (vue: typeof Vue): void
-export class Actionsheet extends VanComponent {}
+export class ActionSheet extends VanComponent {}
 export class AddressEdit extends VanComponent {}
 export class AddressList extends VanComponent {}
 export class Area extends VanComponent {}