fix(web): Cancelling image picker does not resolve the promise (react-native-image-picker#2319)

The `cancel` input event is not handled, so if the user attempts to
cancel the picking process, the promise that the library returns will
never be resolved. Most likely this will result in app code that is
stuck waiting for the user to make a selection.

Author: jonathanj

src/platforms/web.ts

@@ -61,7 +61,7 @@ export function imageLibrary(
   document.body.appendChild(input);
 
   return new Promise((resolve) => {
-    input.addEventListener('change', async () => {
+    const inputChangeHandler = async () => {
       if (input.files) {
         if (options.selectionLimit! <= 1) {
           const img = await readFile(input.files[0], {
@@ -90,8 +90,22 @@ export function imageLibrary(
           resolve(result);
         }
       }
+      cleanup();
+    };
+
+    const inputCancelHandler = async () => {
+      resolve({didCancel: true});
+      cleanup();
+    };
+
+    const cleanup = () => {
+      input.removeEventListener('change', inputChangeHandler);
+      input.removeEventListener('cancel', inputCancelHandler);
       document.body.removeChild(input);
-    });
+    };
+
+    input.addEventListener('change', inputChangeHandler);
+    input.addEventListener('cancel', inputCancelHandler);
 
     const event = new MouseEvent('click');
     input.dispatchEvent(event);