Fix dockerfile and python

Dockerfile

@@ -6,6 +6,5 @@ COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
 COPY app/ ./
-COPY database.db ./
 
-CMD "python monitor-planning.py"
+CMD "python3 monitor-planning.py"

app/monitor-planning.py

@@ -21,7 +21,9 @@ search_num_weeks = 1
 reset_table = False
 
 web_opts = webdriver.ChromeOptions()
+web_opts.add_argument('--no-sandbox')
 web_opts.add_argument('--headless')
+web_opts.add_argument('--disable-dev-shm-usage')
 
 def notify(title, message):
     api_url = 'https://hass.jennett-wheeler.co.uk/api/webhook/-Qx6jHsGLHwbBlJpLek5Nj8qS'