Adressing smaller review comments

src/codecs/webp/Decoder.worker.ts

@@ -32,7 +32,7 @@ export default class WebpDecoder {
         },
         onRuntimeInitialized() {
           // An Emscripten is a then-able that, for some reason, `then()`s itself,
-          // causing an infite loop when you wrap it in a real promise. Deleten the `then`
+          // causing an infite loop when you wrap it in a real promise. Deleting the `then`
           // prop solves this for now.
           // See: https://github.com/kripken/emscripten/blob/incoming/src/postamble.js#L129
           // TODO(surma@): File a bug with Emscripten on this.

src/codecs/webp/decoder.ts

@@ -11,6 +11,5 @@ export async function decode(file: File): Promise<ImageBitmap> {
 }
 
 export async function isSupported(): Promise<boolean> {
-  // TODO(@surma): Should we do wasm detection here or something?
   return true;
 }