Write the name in lowercase where people see it

The brand is lowercase inbuxa. This changes the setup wizard's welcome and
completion text, the logo's accessible name, the version line in the top bar,
the document title, the legacy-protocols screens and banner, the protocol
table's JMAP row, one help text, and the issuer new authenticator enrollments
are labeled with.

Keys are ids here, not English text, so nothing moved: each catalog value and
its inline fallback changed together. This console ships English only, so
there is no other catalog to follow. Comments, identifiers and env var names
are untouched.

src/features/hardening/parts.tsx

@@ -128,7 +128,7 @@ export function Statement({ scope }: { scope: StatementScope }) {
   return (
     <section className="space-y-3 rounded-xl border border-amber-500/40 bg-amber-500/5 p-5 text-sm leading-relaxed">
       <p className="text-base font-semibold">
-        {t('legacyProtocols.statementTitle', 'Only INBUXA webmail and JMAP apps will work.')}
+        {t('legacyProtocols.statementTitle', 'Only inbuxa webmail and JMAP apps will work.')}
       </p>
       <p>
         {scope.kind === 'server'
@@ -152,7 +152,7 @@ export function Statement({ scope }: { scope: StatementScope }) {
         <li>
           {t(
             'legacyProtocols.statementFilters',
-            'Filters managed from a mail app (ManageSieve) will stop working. Filters set in INBUXA webmail keep working.',
+            'Filters managed from a mail app (ManageSieve) will stop working. Filters set in inbuxa webmail keep working.',
           )}
         </li>
         <li>
@@ -164,7 +164,7 @@ export function Statement({ scope }: { scope: StatementScope }) {
         <li>
           {t(
             'legacyProtocols.statementWebmail',
-            'People keep full access through INBUXA webmail, which can be installed as an app on phones and computers.',
+            'People keep full access through inbuxa webmail, which can be installed as an app on phones and computers.',
           )}
         </li>
       </ul>
@@ -183,7 +183,7 @@ export function Statement({ scope }: { scope: StatementScope }) {
       <p>
         {t(
           'legacyProtocols.statementSubmission',
-          'Sending from mail apps (SMTP submission) will stop working, but its ports stay open: mail apps will be told they cannot sign in. Incoming mail (SMTP) and INBUXA webmail (JMAP) are not affected and cannot be turned off here.',
+          'Sending from mail apps (SMTP submission) will stop working, but its ports stay open: mail apps will be told they cannot sign in. Incoming mail (SMTP) and inbuxa webmail (JMAP) are not affected and cannot be turned off here.',
         )}
       </p>
       {scope.kind === 'server' && (
@@ -191,7 +191,7 @@ export function Statement({ scope }: { scope: StatementScope }) {
           <strong>{t('legacyProtocols.firewallLead', 'This does not change your firewall or port forwarding.')}</strong>{' '}
           {t(
             'legacyProtocols.firewallBody',
-            'INBUXA stops answering on these ports; anything that still routes them to this server — firewall rules, NAT port-forwards, a load balancer or proxy — is yours to reconcile.',
+            'inbuxa stops answering on these ports; anything that still routes them to this server — firewall rules, NAT port-forwards, a load balancer or proxy — is yours to reconcile.',
           )}
         </p>
       )}