[Web] Feature: Allow copies of quota notifications to be sent via SMTP to internal or external addresses

[Web] Various style fixes
[Web] Remove unused or unnecessary dependencies

data/web/lang/lang.de.json

@@ -580,6 +580,7 @@
         "pushover_verify": "Verbindung verifizieren",
         "quota_mb": "Speicherplatz (MiB)",
         "quota_warning_bcc": "Quota-Warnung BCC",
+        "quota_warning_bcc_info": "Die Warnungen werden als separate Kopie an die nachstehenden Empfänger versendet. Dem Betreff wird der jeweilige Benutzername in Klammern (etwa <code>Quota-Warnung (user@example.com)</code>) angehangen.",
         "ratelimit": "Rate Limit",
         "redirect_uri": "Redirect/Callback-URL",
         "relay_all": "Alle Empfänger-Adressen relayen",
@@ -608,7 +609,7 @@
         "spam_score": "Einen benutzerdefiniterten Spam-Score festlegen",
         "subfolder2": "Ziel-Ordner<br><small>(leer = kein Unterordner)</small>",
         "syncjob": "Sync-Job bearbeiten",
-        "target_address": "Ziel-Adresse(n) <small>(getrennt durch Komma)</small>",
+        "target_address": "Ziel-Adresse(n)",
         "target_domain": "Ziel-Domain",
         "timeout1": "Timeout für Verbindung zum Remote-Host",
         "timeout2": "Timeout für Verbindung zum lokalen Host",

data/web/lang/lang.en.json

@@ -578,6 +578,7 @@
         "pushover_verify": "Verify credentials",
         "quota_mb": "Quota (MiB)",
         "quota_warning_bcc": "Quota warning BCC",
+        "quota_warning_bcc_info": "Warnings will be sent as separate copies to the following recipients. The subject will be suffixed by the corresponding username in brackets, for example: <code>Quota warning (user@example.com)</code>.",
         "ratelimit": "Rate limit",
         "redirect_uri": "Redirect/Callback URL",
         "relay_all": "Relay all recipients",