Added separate public & private jellyfin address option

jf-accounts

@@ -102,7 +102,7 @@ def default_css():
 
 css = {}
 css = default_css()
-if 'custom_css' in config['files']: 
+if 'custom_css' in config['files']:
     if config['files']['custom_css'] != '':
         try:
             shutil.copy(config['files']['custom_css'],
@@ -113,8 +113,8 @@ if 'custom_css' in config['files']:
             css['crossorigin'] = ''
         except FileNotFoundError:
             log.error(f'Custom CSS {config["files"]["custom_css"]} not found, using default.')
-        
-        
+
+
 if ('email_html' not in config['password_resets'] or
         config['password_resets']['email_html'] == ''):
     log.debug('Using default password reset email HTML template')
@@ -134,6 +134,9 @@ if ('email_text' not in config['invite_emails'] or
     log.debug('Using default invite email plaintext template')
     config['invite_emails']['email_text'] = str(local_dir /
                                                 'invite-email.txt')
+if ('public_server' not in config['jellyfin'] or
+        config['jellyfin']['public_server'] == ''):
+    config['jellyfin']['public_server'] = config['jellyfin']['server']
 
 if args.get_policy:
     import json
@@ -163,13 +166,13 @@ else:
     def signal_handler(sig, frame):
         print('Quitting...')
         sys.exit(0)
-    
+
     signal.signal(signal.SIGINT, signal_handler)
     signal.signal(signal.SIGTERM, signal_handler)
     app = Flask(__name__, root_path=str(local_dir))
     app.config['DEBUG'] = config.getboolean('ui', 'debug')
     app.config['SECRET_KEY'] = secrets.token_urlsafe(16)
-    
+
     if __name__ == '__main__':
         from waitress import serve
         if first_run:
@@ -180,7 +183,7 @@ else:
             serve(app,
                    host=host,
                    port=port)
-        else:  
+        else:
             import jellyfin_accounts.web_api
             import jellyfin_accounts.web
             host = config['ui']['host']