chore: replace json config with database

src-tauri/src/state.rs

@@ -0,0 +1,9 @@
+// state.rs
+use crate::config::Config;
+use std::path::PathBuf;
+use std::sync::Mutex;
+
+pub struct AppState {
+    pub config: Mutex<Config>,
+    pub opened_files: Mutex<Vec<PathBuf>>,
+}