Update English (United States) translation (#2511)

Co-authored-by: TheFrenchGhosty <TheFrenchGhosty@posteo.is>

locales/en-US.json

@@ -426,7 +426,7 @@
     "next_steps_error_message": "After which you should try to: ",
     "next_steps_error_message_refresh": "Refresh",
     "next_steps_error_message_go_to_youtube": "Go to YouTube",
-    "footer_donate_page": "Donate: ",
+    "footer_donate_page": "Donate",
     "footer_documentation": "Documentation",
     "footer_source_code": "Source code",
     "footer_original_source_code": "Original source code",