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/testing-settings.spec.ts

@@ -303,6 +303,61 @@ test.describe('Testing settings', () => {
     }
   )
 
+  test(
+    `Load desktop app with no settings file`,
+    { tag: '@electron' },
+    async ({ browser: _ }, testInfo) => {
+      const { electronApp, page } = await setupElectron({
+        // This is what makes no settings file get created
+        cleanProjectDir: false,
+        testInfo,
+      })
+
+      await page.setViewportSize({ width: 1200, height: 500 })
+
+      // Selectors and constants
+      const errorHeading = page.getByRole('heading', {
+        name: 'An unextected error occurred',
+      })
+      const projectDirLink = page.getByText('Loaded from')
+
+      // If the app loads without exploding we're in the clear
+      await expect(errorHeading).not.toBeVisible()
+      await expect(projectDirLink).toBeVisible()
+
+      await electronApp.close()
+    }
+  )
+
+  test(
+    `Load desktop app with a settings file, but no project directory setting`,
+    { tag: '@electron' },
+    async ({ browser: _ }, testInfo) => {
+      const { electronApp, page } = await setupElectron({
+        testInfo,
+        appSettings: {
+          app: {
+            themeColor: '259',
+          },
+        },
+      })
+
+      await page.setViewportSize({ width: 1200, height: 500 })
+
+      // Selectors and constants
+      const errorHeading = page.getByRole('heading', {
+        name: 'An unextected error occurred',
+      })
+      const projectDirLink = page.getByText('Loaded from')
+
+      // If the app loads without exploding we're in the clear
+      await expect(errorHeading).not.toBeVisible()
+      await expect(projectDirLink).toBeVisible()
+
+      await electronApp.close()
+    }
+  )
+
   test(
     `Closing settings modal should go back to the original file being viewed`,
     { tag: '@electron' },