test: Lower perplexity to test number of topics created

app.py

@@ -32,7 +32,7 @@ def embed_text(text: List[str], model: SentenceTransformer) -> np.ndarray:
     return model.encode(text)
 
 def get_tsne_embeddings(
-    embeddings: np.ndarray, perplexity: int = 15, n_components: int = 2, init: str = "pca", n_iter: int = 5000, random_state: int = SEED
+    embeddings: np.ndarray, perplexity: int = 10, n_components: int = 2, init: str = "pca", n_iter: int = 5000, random_state: int = SEED
 ) -> np.ndarray:
     tsne = TSNE(perplexity=perplexity, n_components=n_components, init=init, n_iter=n_iter, random_state=random_state)
     return tsne.fit_transform(embeddings)