Add some fixes after merging vue3 and automations (#54)

Author: mariobalca

frontend/src/assets/scss/layout.scss

@@ -142,7 +142,7 @@ hr {
     @apply bg-transparent;
   }
   .el-loading-spinner  {
-    @apply relative flex items-center justify-center h-full;
+    @apply relative flex items-center justify-center h-full top-auto mt-auto;
     .circular {
       @apply w-10 h-10;
     }

frontend/src/modules/tenant/components/tenant-list-table.vue

@@ -78,7 +78,7 @@
             <div style="margin-bottom: 8px">
               <el-button
                 :disabled="invitationLoading"
-                type="success"
+                class="btn btn--secondary btn--secondary--green"
                 @click="
                   doAcceptInvitation(
                     invitationToken(scope.row)
@@ -93,7 +93,7 @@
             <div>
               <el-button
                 :disabled="invitationLoading"
-                type="danger"
+                class="btn btn--secondary btn--secondary--red"
                 @click="
                   doDeclineInvitationWithConfirm(
                     invitationToken(scope.row)

frontend/src/premium/user/components/user-list-table.vue

@@ -57,7 +57,6 @@
         <el-table-column
           :label="fields.status.label"
           :prop="fields.status.name"
-          sortable="custom"
         >
           <template #default="scope">
             <el-tag