APP-2971: Fix onboarding avatar compression after Expo 57 (#11580)

src/lib/media/uriSize.ts

@@ -0,0 +1,9 @@
+import {getInfoAsync} from 'expo-file-system/legacy'
+
+export async function getUriSize(uri: string): Promise<number> {
+  const info = await getInfoAsync(uri)
+  if (!info.exists) {
+    throw new Error('Failed to read image size')
+  }
+  return info.size
+}

src/lib/media/uriSize.web.ts

@@ -0,0 +1,5 @@
+export async function getUriSize(uri: string): Promise<number> {
+  const response = await fetch(uri)
+  const blob = await response.blob()
+  return blob.size
+}