Rename search_types to search_type to standardize to singular naming

Using singular names for other directories in application already
 - processor instead of processors
 - interface instead of interfaces

main.py

@@ -1,6 +1,6 @@
 from typing import Optional
 from fastapi import FastAPI
-from search_types import asymmetric
+from search_type import asymmetric
 import argparse
 import pathlib
 import uvicorn

search_type/asymmetric.py

@@ -40,10 +40,10 @@ def extract_entries(notesfile, verbose=False):
     return entries
 
 
-def compute_embeddings(entries, bi_encoder, embeddings_file, verbose=False):
+def compute_embeddings(entries, bi_encoder, embeddings_file, regenerate=False, verbose=False):
     "Compute (and Save) Embeddings or Load Pre-Computed Embeddings"
     # Load pre-computed embeddings from file if exists
-    if embeddings_file.exists():
+    if embeddings_file.exists() and not regenerate:
         corpus_embeddings = torch.load(get_absolute_path(embeddings_file))
         if verbose:
             print(f"Loaded embeddings from {embeddings_file}")