feat(psn): add PlayStation link card and PSN import

Settings card to link and unlink with the NPSSO, shows the expiry
date. Import page gets a PSN source; blocked when the link has ended.
English and German texts.

src/pages/GameDetail.test.jsx

@@ -240,6 +240,15 @@ describe('GameDetail of a game added by hand', () => {
         expect(screen.getByText('MANUAL_GAME.NO_ACHIEVEMENTS')).toBeTruthy();
     });
 
+    it('treats a game from a PlayStation import like a game added by hand', async () => {
+        answer({...manualGame, source: 'PSN', platform: 'PS5'},
+            {'PUT /api/library/games/-1025/manual': noBody, 'DELETE /api/library/games/-1025': noBody});
+        renderDetail(-1025);
+
+        expect(await screen.findByLabelText('MANUAL_GAME.PLATFORM')).toBeTruthy();
+        expect(screen.getByText('MANUAL_GAME.NO_ACHIEVEMENTS')).toBeTruthy();
+    });
+
     it('saves platform and hours', async () => {
         renderDetail(-1025);
         fireEvent.change(await screen.findByLabelText('MANUAL_GAME.HOURS'), {target: {value: '2.5'}});