chore: Style transfer models uploaded to hf repo (#58)

## Description
Style transfer models are now fetched from hf repository, depending on
device OS it's using coreml or xnnpack model, also binary files were
removed from example app

### Type of change
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] 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

### Testing instructions
<!-- Provide step-by-step instructions on how to test your changes.
Include setup details if necessary. -->

### Screenshots
<!-- Add screenshots here, if applicable -->

### Related issues
<!-- Link related issues here using #issue-number -->

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

### Additional notes
<!-- Include any additional information, assumptions, or context that
reviewers might need to understand this PR. -->

examples/computer-vision/screens/StyleTransferScreen.tsx

@@ -1,8 +1,10 @@
 import Spinner from 'react-native-loading-spinner-overlay';
 import { BottomBar } from '../components/BottomBar';
-import { candy } from '../models/style_transfer';
 import { getImageUri } from '../utils';
-import { useStyleTransfer } from 'react-native-executorch';
+import {
+  useStyleTransfer,
+  STYLE_TRANSFER_CANDY,
+} from 'react-native-executorch';
 import { View, StyleSheet, Image } from 'react-native';
 
 export const StyleTransferScreen = ({
@@ -13,7 +15,7 @@ export const StyleTransferScreen = ({
   setImageUri: (imageUri: string) => void;
 }) => {
   const model = useStyleTransfer({
-    modulePath: candy,
+    modulePath: STYLE_TRANSFER_CANDY,
   });
 
   const handleCameraPress = async (isCamera: boolean) => {

src/constants/modelUrls.ts

@@ -1,3 +1,7 @@
+//LLM's
+
+import { Platform } from 'react-native';
+
 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 =
@@ -14,3 +18,23 @@ export const LLAMA3_2_1B_TOKENIZER =
   'https://huggingface.co/software-mansion/react-native-executorch-llama-3.2/resolve/v0.1.0/llama-3.2-1B/original/tokenizer.bin';
 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
+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'
+    : 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-candy/resolve/v0.2.0/xnnpack/style_transfer_candy_xnnpack.pte';
+
+export const STYLE_TRANSFER_MOSAIC =
+  Platform.OS === 'ios'
+    ? 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-mosaic/resolve/main/coreml/style_transfer_mosaic_coreml.pte'
+    : 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-mosaic/resolve/main/xnnpack/style_transfer_mosaic_xnnpack.pte';
+
+export const STYLE_TRANSFER_RAIN_PRINCESS =
+  Platform.OS === 'ios'
+    ? 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-rain-princess/resolve/main/coreml/style_transfer_rain_princess_coreml.pte'
+    : 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-rain-princess/resolve/main/xnnpack/style_transfer_rain_princess_xnnpack.pte';
+export const STYLE_TRANSFER_UDNIE =
+  Platform.OS === 'ios'
+    ? 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-udnie/resolve/main/coreml/style_transfer_udnie_coreml.pte'
+    : 'https://huggingface.co/software-mansion/react-native-executorch-style-transfer-udnie/resolve/main/xnnpack/style_transfer_udnie_xnnpack.pte';