fix: externalize lzma for import build

src/lib/services/imager/png-decode.test.ts

@@ -44,4 +44,3 @@ describe('png-decode', () => {
     expect(() => decodePng(Buffer.from([1, 2, 3, 4, 5, 6, 7, 8]))).toThrow('not a PNG')
   })
 })
-

src/lib/services/imager/png-decode.ts

@@ -133,4 +133,3 @@ export function cropRgba(
   }
   return out
 }
-