test: fix theme switch test

ts/test/automation/switching_theme.spec.ts

@@ -15,15 +15,17 @@ test('Switch themes', async () => {
   windows = windowLoggedIn.windows;
   const [windowA] = windows;
   // Check light theme colour is correct
-  const lightThemeColor = windowA.locator('.inbox.index');
-  await expect(lightThemeColor).toHaveCSS('background-color', 'rgb(255, 255, 255)');
+  const darkThemeColor = windowA.locator('.inbox.index');
+  await expect(darkThemeColor).toHaveCSS('background-color', 'rgb(27, 27, 27)');
+
   // Click theme button and change to dark theme
   await clickOnTestIdWithText(windowA, 'theme-section');
   // Check background colour of background to verify dark theme
-  const darkThemeColor = windowA.locator('.inbox.index');
-  await expect(darkThemeColor).toHaveCSS('background-color', 'rgb(23, 23, 23)');
+  const lightThemeColor = windowA.locator('.inbox.index');
+  await expect(lightThemeColor).toHaveCSS('background-color', 'rgb(255, 255, 255)');
+
   // Toggle back to light theme
   await clickOnTestIdWithText(windowA, 'theme-section');
   // Check background colour again
-  await expect(lightThemeColor).toHaveCSS('background-color', 'rgb(255, 255, 255)');
+  await expect(darkThemeColor).toHaveCSS('background-color', 'rgb(27, 27, 27)');
 });