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/components/bootstrap/BootstrapWizard.tsx

@@ -336,7 +336,7 @@ export function BootstrapWizard() {
     <WizardShell>
       <div className="space-y-6">
         <div>
-          <h2 className="text-2xl font-semibold tracking-tight">{t('bootstrap.welcome', 'Welcome to INBUXA')}</h2>
+          <h2 className="text-2xl font-semibold tracking-tight">{t('bootstrap.welcome', 'Welcome to inbuxa')}</h2>
           <p className="text-sm text-muted-foreground mt-1">
             {t('bootstrap.welcomeSubtitle', "Let's get your server set up.")}
           </p>
@@ -471,7 +471,7 @@ function SuccessScreen({
                   'bootstrap.credentialsCreated',
                   'Your administrator account has been created. Write these down now: the password will not be shown again.',
                 )
-              : t('bootstrap.configuredSuccessfully', 'INBUXA has been configured successfully.')}
+              : t('bootstrap.configuredSuccessfully', 'inbuxa has been configured successfully.')}
           </p>
         </div>
       </div>
@@ -503,7 +503,7 @@ function SuccessScreen({
           <span className="font-medium">{t('bootstrap.nextStepLabel', 'Next step:')}</span>{' '}
           {t(
             'bootstrap.nextStepBody',
-            'restart INBUXA for the new configuration to take effect. Once restarted, sign in with the credentials above to continue administering your server.',
+            'restart inbuxa for the new configuration to take effect. Once restarted, sign in with the credentials above to continue administering your server.',
           )}
         </p>
       </div>