Home page in desktop, separate file support (#252)

* Bugfix: don't toast on every change of defaultDir

* Refactor app to live under /file/:id

* Stub out Tauri-only home page

* home reads and writes blank files to defaultDir

* Fix initial directory creation

* Make file names editable

* Refactor onboarding to use normal fns for load issues

* Feature: load and write files to and from disk

* Feature: Add file deletion, break out FileCard component

* Fix settings close URLs to be relative, button types

* Add filename and link to AppHeader

* Style tweaks: scrollbar, header name, card size

* Style: add header, empty state to Home

* Refactor: load file in route loader

* Move makePathRelative to lib to fix tests

* Fix App test

* Use '$nnn' default name scheme

* Fix type error on ActionButton

* Fix type error on ActionButton

* @adamchalmers review

* Fix merge mistake

* Refactor: rename all things "file" to "project"

* Feature: migrate to <project-name>/main.kcl setup

* Fix tsc test

* @Irev-Dev review part 1: renames and imports

* @Irev-Dev review pt 2: simplify file list refresh

* @Irev-Dev review pt 3: filter out non-projects

* @Irev-review pt 4: folder conventions + home auth

* Add sort functionality to new welcome page (#255)

* Add todo for Sentry

src-tauri/src/main.rs

@@ -98,6 +98,7 @@ fn main() {
             Ok(())
         })
         .invoke_handler(tauri::generate_handler![login, read_toml, read_txt_file])
+        .plugin(tauri_plugin_fs_extra::init())
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
 }