feat(dialogs): Vacay, Collections, Atlas and Journey in the new dialog look

Every popup of the four pages moves to the shared dialog frame the trip
uses: head band with its icon, the scrolling body, the footer with its
actions, and ConfirmDialog for the questions.

- Vacay: settings, removing a year (now says so when it fails), the
  fusion request, inviting a person, a person's colour and sharing the
  calendar.
- Collections: new and edited lists, adding a place, importing a file and
  a trip's places, sharing, labels and assigning them, copying to a trip,
  moving or duplicating, saving a trip's places and deleting a list. The
  stylesheet of the old import view goes.
- Atlas: the country popup with the flag in its head, its choices as rows
  and the wishlist step; Dawarich's Atlas dialog and its accept dialog on
  the desktop.
- Journey: creating a journey, its settings, linking a trip, inviting a
  contributor, the entry editor (discarding asks in a dialog) and the
  photo provider picker; the entry card's menu is the shared one.

The phone keeps its own sheets: where a dialog is shared with it
(Dawarich, the contributor invite, the provider picker) only the desktop
frame changes.

client/src/components/Collections/ImportCollectionModal.test.tsx

@@ -154,7 +154,8 @@ describe('ImportCollectionModal with a GPX (#2301)', () => {
 
   it('FE-COMP-COLLIMPORT-011: says which files it takes', () => {
     renderModal();
-    expect(screen.getByText('.trekcollection.json · .gpx')).toBeInTheDocument();
+    expect(screen.getByText('.trekcollection.json')).toBeInTheDocument();
+    expect(screen.getByText('.gpx')).toBeInTheDocument();
     const input = document.querySelector('input[type="file"]') as HTMLInputElement;
     expect(input.accept).toContain('.gpx');
   });