diag: Alphabetischen Bereich der Bankliste zeigen

815 geladene Banken bei ueber 2500 verfuegbaren, und alle Beispiele beginnen
mit A oder B – das deutet auf eine abgeschnittene Liste, nicht auf einen
falschen Suchbegriff. Die Sandbox-Vermutung ist damit widerlegt: "Aachener
Bank" und "BBVA" sind echte Institute.

Die Antwort nennt jetzt den Bereich von/bis und alle vorhandenen
Anfangsbuchstaben. Fehlen N und R, ist die Sache entschieden und die Abfrage
braucht Blaettern – dann suche ich nicht laenger am falschen Ende.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

web/src/locales/en.json

@@ -604,8 +604,11 @@
     "allCountries": "all countries",
     "noMatch": "{{gesamt}} banks loaded, but none matches. Try something shorter – some are listed under a different name than the one you know.",
     "noneLoaded": "The interface returned no banks at all. That is not the search term: check whether your Enable Banking application is active yet – it only becomes active once you have linked your own accounts there.",
-    "sampleTitle": "Examples from the loaded list:",
-    "sandboxHint": "If those are test or mock institutions instead of real banks, your application is registered as “Sandbox” in the Control Panel. N26 and Revolut exist only in “Production”, where they are listed under exactly those names."
+    "sampleTitle": "Examples from across the loaded list:",
+    "sandboxHint": "If those are test or mock institutions instead of real banks, your application is registered as “Sandbox” in the Control Panel. N26 and Revolut exist only in “Production”, where they are listed under exactly those names.",
+    "range": "The list runs from “{{von}}” to “{{bis}}”.",
+    "letters": "Initial letters present",
+    "truncatedHint": "If whole letters are missing – N or R, say – the list is truncated and your bank was never delivered. Then the search term is innocent and the query needs paging."
   },
   "bankReturn": {
     "title": "Back from your bank",