Remove Materialize library.
Convert public (non-admin) ui (e.g. optional nav bar and modal windows) to vanilla js/css. Possibly using a lightweight library like https://micromodal.now.sh/ for the dialog windows.
Switch editor form in admin to use https://github.com/json-editor/json-editor plus vanilla css/js. Bootstrap if necessary.
Remove Materialize library.
Convert public (non-admin) ui (e.g. optional nav bar and modal windows) to vanilla js/css. Possibly using a lightweight library like https://micromodal.now.sh/ for the dialog windows.
Switch editor form in admin to use https://github.com/json-editor/json-editor plus vanilla css/js. Bootstrap if necessary.