feat(core): add a two-step confirm page to create new journal (#13240)

close AF-2750;

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Introduced a new workspace journals page with date-based navigation,
placeholder UI, and the ability to create daily journals directly from
the page.
* Added a "Today" button for quick navigation to the current day's
journal when viewing other dates.

* **Improvements**
* Enhanced the journal document title display with improved date
formatting and flexible styling.
* Expanded the active state for the journal sidebar button to cover all
journal-related routes.
* Updated journal navigation to open existing entries directly or
navigate to filtered journal listings.

* **Bug Fixes**
* Improved date handling and navigation logic for journal entries to
ensure accurate redirection and creation flows.

* **Style**
* Added new styles for the workspace journals page, including headers,
placeholders, and buttons.

* **Localization**
* Added English translations for journal placeholder text and create
journal prompts.

* **Tests**
* Added confirmation steps in journal creation flows to improve test
reliability.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tests/kit/src/utils/load-page.ts

@@ -15,8 +15,14 @@ export async function open404Page(page: Page) {
   await page.goto(`${coreUrl}/404`);
 }
 
+export async function confirmCreateJournal(page: Page) {
+  const confirmButton = page.getByTestId('confirm-create-journal-button');
+  await confirmButton.click();
+}
+
 export async function openJournalsPage(page: Page) {
   await page.getByTestId('slider-bar-journals-button').click();
+  await confirmCreateJournal(page);
   await expect(
     page.locator('.doc-title-container:has-text("Today")')
   ).toBeVisible();