refactor(i18n): Update translations

src/locales/en.json

@@ -41,7 +41,7 @@
     "already-paid": "Already paid",
     "amount": "Amount",
     "amount-per-kilometer": "Amount per kilometer",
-    "anonyme_spende": "Anonymous Donation",
+    "anonyme_spende": "Anonymous",
     "anonymer_sponsor": "👻 Anonymous Donor",
     "apartment-suite-etc": "Apartment, suite, etc.",
     "api-endpoint": "API-Endpoint",
@@ -226,7 +226,7 @@
     "error_on_login": "Error on login",
     "everything-concerning-your-profile": "Everything concerning your profile",
     "faq": "FAQ",
-    "festbetrag": "Fixed Donation",
+    "festbetrag": "Fixed amount",
     "filename_sponsoringquittungsliste": "DonorReceiptList",
     "filter-by-organization-team": "Filter by Organization/ Team",
     "first-name": "First name",
@@ -421,7 +421,7 @@
     "settings": "Settings",
     "settings-for-your-profile": "Settings for your profile",
     "something-about-the-group": "Something about the group...",
-    "spende_pro_km": "donation per km",
+    "spende_pro_km": "Per Kilometer",
     "sponsoring-quittungs-liste_herunterladen": "Download donor receipt list",
     "sponsorings": "Sponsorings",
     "station-deleted": "station deleted",