Rework auth to allow smooth switching

src-tauri/src/commands/system.rs

@@ -1,6 +1,7 @@
 #[cfg(target_os = "windows")]
 use crate::server::resolve::strip_unc;
 use tauri::Manager;
+use std::path::PathBuf;
 
 #[tauri::command]
 pub fn get_platform_ui_scale(window: tauri::Window) -> f64 {
@@ -97,4 +98,4 @@ pub fn reset_suwayomi_data(app: tauri::AppHandle) -> Result<(), String> {
         }
     }
     Ok(())
-}
+}