feat(core): add progressive JPEG support and fix Sharp format switching

ts/plugins.typed.ts

@@ -2,6 +2,7 @@ import type * as sharpType from 'sharp';
 
 export { type sharpType };
 
+import type { Jimp } from 'jimp';
 import type * as jimpType from 'jimp';
 
-export { type jimpType };
+export { type jimpType, type Jimp };