add message for forbidden dynDNS and fix diagnosis cards paddings

app/src/components/reusableForms/DomainForm.vue

@@ -43,6 +43,7 @@
         </template>
       </form-field>
     </b-collapse>
+    <div v-if="dynDnsForbiden" class="alert alert-warning mt-2" v-html="$t('domain_add_dyndns_forbidden')" />
   </card-form>
 </template>
 

app/src/i18n/locales/en.json

@@ -119,6 +119,7 @@
     "domain_add": "Add domain",
     "domain_add_dns_doc": "… and I have <a href='//yunohost.org/dns'>set my DNS correctly</a>.",
     "domain_add_dyndns_doc": "… and I want a dynamic DNS service.",
+    "domain_add_dyndns_forbidden": "You have already subscribed to a DynDNS domain, you can ask to remove your current DynDNS domain on the forum <a href='//forum.yunohost.org/t/nohost-domain-recovery-suppression-de-domaine-en-nohost-me-noho-st-et-ynh-fr/442'>in the dedicated thread</a>.",
     "domain_add_panel_with_domain": "I already have a domain name…",
     "domain_add_panel_without_domain": "I don't have a domain name…",
     "domain_default_desc": "The default domain is the connection domain where users log in.",

app/src/views/diagnosis/Diagnosis.vue

@@ -26,7 +26,8 @@
     <!-- REPORT CARD -->
     <card
       v-for="report in reports" :key="report.id"
-      collapsable :collapsed="report.noIssues" button-unbreak="lg"
+      collapsable :collapsed="report.noIssues"
+      no-body button-unbreak="lg"
     >
       <!-- REPORT HEADER -->
       <template #header>