Hot swap backend config via config screen start button click

- Update configuration to use by the backend, while app is running
- Trigger after user hits start button with their config.
  The config gets written to khoj.yml file first, then the updated
  config is loaded onto memory

src/interface/desktop/configure_screen.py

@@ -3,7 +3,9 @@ from PyQt6 import QtWidgets
 from PyQt6.QtCore import Qt
 
 # Internal Packages
-from src.utils import constants, yaml as yaml_utils
+from src.configure import configure_server
+from src.utils import constants, state, yaml as yaml_utils
+from src.utils.cli import cli
 from src.utils.config import SearchType
 from src.interface.desktop.file_browser import FileBrowser
 
@@ -80,6 +82,12 @@ class ConfigureScreen(QtWidgets.QDialog):
         del config['processor']['conversation']
         yaml_utils.save_config_to_file(config, self.config_file)
 
+        # Load config from app config file
+        args = cli(state.cli_args)
+
+        # Configure server with loaded config
+        configure_server(args, required=True)
+
         self.hide()