Better indicate the my. dashboard domain in setup

dashboard/src/style.css

@@ -40,6 +40,10 @@ html, body {
   }
 }
 
+b {
+  font-weight: 700;
+}
+
 .shadow {
   box-shadow: 0 2px 5px rgba(0,0,0,.1);
 }

dashboard/src/views/SetupView.vue

@@ -166,7 +166,7 @@ onMounted(async () => {
               <label for="domainInput">Domain  <sup><a href="https://docs.cloudron.io/installation/#domain-setup" class="help" target="_blank"><i class="fa fa-question-circle"></i></a></sup></label>
               <TextInput id="domainInput" v-model="domain" placeholder="example.com" required />
               <div class="text-danger" v-show="domain.indexOf('my.') === 0 && domain.length > 3">Are you sure about this domain? The dashboard will be at <b>my.{{ domain }}</b></div>
-              <div style="padding-top: 6px;">Apps will be installed on subdomains of this domain. The dashboard will be available on the <b>my</b> subdomain. You can add more domains later.</div>
+              <div style="padding-top: 6px;">Apps will be installed on subdomains of this domain. The dashboard will be available on the <b>my{{ domain ? `.${domain}` : '' }}</b> subdomain. You can add more domains later.</div>
             </FormGroup>
 
             <DomainProviderForm v-model:provider="provider" v-model:dns-config="dnsConfig" v-model:tls-provider="tlsProvider" :domain="domain" :show-advanced="showAdvanced" />