switch to mongodb, add drag&drop

frontend/src/components/mod.rs

@@ -0,0 +1,16 @@
+pub mod home;
+pub use home::Home;
+
+pub mod register;
+pub use register::Register;
+
+pub mod login;
+pub use login::Login;
+
+pub mod user_context_provider;
+pub use user_context_provider::*;
+
+pub mod base_page;
+pub use base_page::*;
+
+pub mod list_errors;