feat: noArgonCrystalDecay cheat

- Translated the latest new vendor string into German in `de.js`
- Added the `[UNTRANSLATED] No Vendor Purchase Limits` placeholder string in `zh.js` because that file was missed.

Reviewed-on: #1196
Co-authored-by: Animan8000 <animan8000@noreply.localhost>
Co-committed-by: Animan8000 <animan8000@noreply.localhost>

static/webui/translations/de.js

@@ -111,7 +111,7 @@ dict = {
     cheats_unlockArcanesEverywhere: `Arkana-Adapter überall`,
     cheats_noDailyStandingLimits: `Kein tägliches Ansehenslimit`,
     cheats_noArgonCrystalDecay: `[UNTRANSLATED] No Argon Crystal Decay`,
-    cheats_noVendorPurchaseLimits: `[UNTRANSLATED] No Vendor Purchase Limits`,
+    cheats_noVendorPurchaseLimits: `Keine Kaufbeschränkungen bei Händlern`,
     cheats_instantResourceExtractorDrones: `Sofortige Ressourcen-Extraktor-Drohnen`,
     cheats_noDojoRoomBuildStage: `Kein Dojo-Raum-Bauvorgang`,
     cheats_fastDojoRoomDestruction: `Schnelle Dojo-Raum-Zerstörung`,