refactor: flatten app/scoreboard/ subpackage and rename files for clarity

app/routes.py

@@ -4,7 +4,7 @@ from flask import render_template, jsonify
 
 from app import app
 from app.config import SCOREBOARD_DATA_FILE
-from app.scoreboard.process_data import extract_game_info
+from app.games import extract_game_info
 
 
 @app.route("/")

app/scheduler.py

@@ -3,8 +3,8 @@ import time
 
 import schedule
 
-from app.scoreboard.get_data import store_scoreboard_data
-from app.scoreboard.update_nhl_standings_db import update_nhl_standings
+from app.api import store_scoreboard_data
+from app.standings import update_nhl_standings
 
 logger = logging.getLogger(__name__)