Use Hugging Face classification models (#60)

## Description
Use classification models from Hugging Face

### Type of change
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation update (improves or adds clarity to existing
documentation)

### Tested on
- [x] iOS
- [x] Android

### Checklist
- [x] I have performed a self-review of my code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have updated the documentation accordingly
- [x] My changes generate no new warnings

examples/computer-vision/screens/ClassificationScreen.tsx

@@ -1,9 +1,8 @@
 import { useState } from 'react';
 import Spinner from 'react-native-loading-spinner-overlay';
 import { BottomBar } from '../components/BottomBar';
-import { efficientnet_v2_s } from '../models/classification';
 import { getImageUri } from '../utils';
-import { useClassification } from 'react-native-executorch';
+import { useClassification, EFFICIENTNET_V2_S } from 'react-native-executorch';
 import { View, StyleSheet, Image, Text, ScrollView } from 'react-native';
 
 export const ClassificationScreen = ({
@@ -18,7 +17,7 @@ export const ClassificationScreen = ({
   );
 
   const model = useClassification({
-    modulePath: efficientnet_v2_s,
+    modulePath: EFFICIENTNET_V2_S,
   });
 
   const handleCameraPress = async (isCamera: boolean) => {

src/constants/modelUrls.ts

@@ -1,7 +1,6 @@
-//LLM's
-
 import { Platform } from 'react-native';
 
+// LLM's
 export const LLAMA3_2_3B_URL =
   'https://huggingface.co/software-mansion/react-native-executorch-llama-3.2/resolve/v0.1.0/llama-3.2-3B/original/llama3_2_3B_bf16.pte';
 export const LLAMA3_2_3B_QLORA_URL =
@@ -19,7 +18,13 @@ export const LLAMA3_2_1B_TOKENIZER =
 export const LLAMA3_2_3B_TOKENIZER =
   'https://huggingface.co/software-mansion/react-native-executorch-llama-3.2/resolve/v0.1.0/llama-3.2-3B/original/tokenizer.bin';
 
-//Style transfer
+// Classification
+export const EFFICIENTNET_V2_S =
+  Platform.OS === 'ios'
+    ? 'https://huggingface.co/software-mansion/react-native-executorch-efficientnet-v2-s/resolve/v0.2.0/coreml/efficientnet_v2_s_coreml_all.pte'
+    : 'https://huggingface.co/software-mansion/react-native-executorch-efficientnet-v2-s/resolve/v0.2.0/xnnpack/efficientnet_v2_s_xnnpack.pte';
+
+// Style transfer
 export const STYLE_TRANSFER_CANDY =
   Platform.OS === 'ios'
     ? 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-candy/resolve/v0.2.0/coreml/style_transfer_candy_coreml.pte'