Improve post & events cards, homepage and my events page

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/views/Resources/ResourceFolder.vue

@@ -60,11 +60,11 @@
             <hr
               role="presentation"
               class="dropdown-divider"
-              v-if="config.resourceProviders.length"
+              v-if="resourceProviders.length"
             />
             <b-dropdown-item
               aria-role="listitem"
-              v-for="resourceProvider in config.resourceProviders"
+              v-for="resourceProvider in resourceProviders"
               :key="resourceProvider.software"
               @click="createResourceFromProvider(resourceProvider)"
             >
@@ -418,6 +418,10 @@ export default class Resources extends Mixins(ResourceMixin) {
     return this.filteredPath.slice(-1)[0];
   }
 
+  get resourceProviders(): IProvider[] {
+    return this.config?.resourceProviders || [];
+  }
+
   async createResource(): Promise<void> {
     if (!this.resource.actor) return;
     this.modalError = "";