Add sqlite and config support

src/main.rs

@@ -1,5 +1,9 @@
 mod app;
 mod event;
+mod schema;
+mod types;
+mod config;
+mod helpers;
 
 use color_eyre::Result;
 use tokio;
@@ -8,7 +12,7 @@ use tokio;
 async fn main() -> Result<()> {
     color_eyre::install()?;
     let terminal = ratatui::init();
-    let mut app = app::App::new();
+    let app = app::App::new();
     let result = app.run(terminal).await;
     ratatui::restore();
     result