Replace references to 'templates' with 'frontend'

- Update the right path in MANIFEST.in

Author: Sailesh Mukil

MANIFEST.in

@@ -1,4 +1,4 @@
-recursive-include templates *
+recursive-include frontend *
 recursive-include assets *
 include README.md
 include sample.ipynb
@@ -7,4 +7,4 @@ include spanner_graphs/*.csv
 include spanner_graphs/*.json
 include tests/*.json
 include third_party/index.js
-include third_party/LICENSE.js
+include third_party/LICENSE.js

spanner_graphs/graph_visualization.py

@@ -48,7 +48,7 @@ def generate_visualization_html(query: str, port: int, params: str):
         # Get the directory of the current file (magics.py)
         current_dir = os.path.dirname(os.path.abspath(__file__))
 
-        # Go up directories until we find the 'templates' folder
+        # Go up directories until we find the 'frontend' folder
         search_dir = current_dir
         while 'frontend' not in os.listdir(search_dir):
             parent = os.path.dirname(search_dir)