LPR improvements (#17716)

* add support for multi-line plates

* config for model size

* default to small model

* add license plate as attribute to motorcycle

* use model size

* docs

* attribute map

* i18n key fix

frigate/embeddings/onnx/lpr_embedding.py

@@ -31,11 +31,14 @@ class PaddleOCRDetection(BaseEmbedding):
         requestor: InterProcessRequestor,
         device: str = "AUTO",
     ):
+        model_file = (
+            "detection-large.onnx" if model_size == "large" else "detection-small.onnx"
+        )
         super().__init__(
             model_name="paddleocr-onnx",
-            model_file="detection.onnx",
+            model_file=model_file,
             download_urls={
-                "detection.onnx": "https://github.com/hawkeye217/paddleocr-onnx/raw/refs/heads/master/models/detection.onnx"
+                model_file: f"https://github.com/hawkeye217/paddleocr-onnx/raw/refs/heads/master/models/{model_file}"
             },
         )
         self.requestor = requestor