Set a default initial directory, handle an existing settings file with no project directory (#3734)

* Fix the project directory setting assignment from file

* Fix default project directory value initialization

* Add a couple tests for loading the app without project directory settings

* A snapshot a day keeps the bugs away! 📷🐛 (OS: windows-latest)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: windows-latest)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: windows-latest)

* trigger CI

* Object merging logic was bad, blew away other app settings if they existed

* Update silly little export file size expectation numbers

* Make rename timeout in test way shorter

* Fix silly little test issues

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Kurt Hutten Irev-Dev <k.hutten@protonmail.ch>

e2e/playwright/code-pane-and-errors.spec.ts

@@ -271,10 +271,7 @@ test(
 
       await page.getByText('bracket').click()
 
-      await expect(page.getByTestId('loading')).toBeAttached()
-      await expect(page.getByTestId('loading')).not.toBeAttached({
-        timeout: 20_000,
-      })
+      await u.waitForPageLoad()
     })
 
     // If they're open by default, we're not actually testing anything.
@@ -302,16 +299,7 @@ test(
 
       await page.getByText('router-template-slate').click()
 
-      await expect(page.getByTestId('loading')).toBeAttached()
-      await expect(page.getByTestId('loading')).not.toBeAttached({
-        timeout: 20_000,
-      })
-
-      await expect(
-        page.getByRole('button', { name: 'Start Sketch' })
-      ).toBeEnabled({
-        timeout: 20_000,
-      })
+      await u.waitForPageLoad()
     })
 
     await test.step('All panes opened before should be visible', async () => {