input: Write a function to create a Flask application that handles a form submission for Name, Email, and Phone, and stores the data in an SQLite database. If the data is stored successfully, redirect to the homepage. If the array is empty then return True.
  assert flask_form_submission_app([])==True
  assert flask_form_submission_app(["John", "john@example.com", "1234567890"])==None
  assert flask_form_submission_app(["Jane", "jane@example.com", "0987654321"])==None
  assert flask_form_submission_app(["Bob", "bob@example.com", "1122334455"])==None
  assert flask_form_submission_app(["Alice", "alice@example.com", "5544332211"])==None
output: def flask_form_submission_app(data):
      if not data:
          return True
      from flask import Flask, redirect, request
      import sqlite3
  
      app = Flask(__name__)
  
      @app.route('/submit', methods=['POST'])
      def submit():
          name = request.form['name']
          email = request.form['email']
          phone = request.form['phone']
  
          conn = sqlite3.connect('form_data.db')
          cursor = conn.cursor()
          cursor.execute('''CREATE TABLE IF NOT EXISTS submissions
                            (name TEXT, email TEXT, phone TEXT)''')
          cursor.execute('INSERT INTO submissions (name, email, phone) VALUES (?, ?, ?)', (name, email, phone))
          conn.commit()
          conn.close()
  
          return redirect('/')
  
      @app.route('/')
      def home():
          return "Homepage"
  
      app.run(debug=True)