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.

public/i18n/en.json

@@ -143,6 +143,27 @@
       "ERROR": "Could not start the Steam link.",
       "UNLINKED": "Steam account unlinked."
     },
+    "PSN": {
+      "TITLE": "PlayStation",
+      "OFF": "The PlayStation link is not set up on this server.",
+      "STEPS_1": "Sign in at playstation.com in your browser.",
+      "STEPS_2": "In the same browser, open this address:",
+      "STEPS_3": "Copy the value of \"npsso\" and paste it below.",
+      "WHAT_IT_GIVES": "The NPSSO code is your PlayStation sign-in session. Whoever has it can use PlayStation sites as you. We exchange it at once for a limited token (PlayStation app scope), store only that token encrypted, and drop the code. You can end it any time: unlink here, or sign out of all devices in your PlayStation account settings. This uses the same unofficial interface as third-party trophy sites; Sony does not support it and may block it.",
+      "NPSSO_LABEL": "NPSSO code",
+      "LINK": "Link PlayStation account",
+      "LINKED": "PlayStation account linked.",
+      "LINKED_SINCE": "Linked since {{date}}",
+      "EXPIRES_ON": "Link ends on {{date}}",
+      "EXPIRED": "The link has ended. Paste a new NPSSO code to link again.",
+      "IMPORT": "Import played games",
+      "UNLINK": "Unlink",
+      "UNLINKED": "PlayStation account unlinked. Imported games stay in your library.",
+      "INVALID": "PlayStation did not accept the code. It may have expired: sign in again and copy a new one.",
+      "UNAVAILABLE": "PlayStation did not answer. Please try again later.",
+      "BUSY": "Another PlayStation request of yours is still running. Wait a moment and try again.",
+      "ERROR": "Something went wrong with the PlayStation link."
+    },
     "VERSION": "Version",
     "VERSION_UNKNOWN": "unknown",
     "CHANGE_PASSWORD": {
@@ -1039,6 +1060,13 @@
     "START": "Search games",
     "START_FAILED": "Could not start the import.",
     "RUNNING": "Another import is still being matched. Wait until it is done.",
+    "PSN_HINT": "Imports your played PS4 and PS5 titles with playtime. Titles you bought but never started are not listed.",
+    "PSN_NOT_LINKED": "Link your PlayStation account in the settings first.",
+    "PSN_RELINK": "The PlayStation link has ended. Paste a new NPSSO code in the settings.",
+    "PSN_NO_TITLES": "PlayStation lists no played titles for this account.",
+    "PSN_UNAVAILABLE": "PlayStation did not answer. Please try again later.",
+    "PSN_BUSY": "Another PlayStation request of yours is still running. Wait a moment and try again.",
+    "PSN_SETTINGS": "Open settings",
     "LOAD_FAILED": "Could not load the import.",
     "MATCHING": "Searching games: {{matched}} / {{total}}",
     "MATCHING_HINT": "You can leave this page and come back later.",
@@ -1102,6 +1130,7 @@
     "SOURCE_HLTB": "HowLongToBeat",
     "SOURCE_PLAYNITE": "Playnite",
     "SOURCE_BOOKMARKLET": "Store page",
+    "SOURCE_PSN": "PlayStation",
     "FORMAT_READ": "Read as: {{format}}",
     "STORE_HINT": "Drag the button below to your bookmarks bar. Open your game library on one of these sites, log in, and click the bookmark: {{sites}}. It reads the list there and brings it back here. The list goes only through your browser.",
     "STORE_LINK": "To Be Played import",