Fix "Export" button height on hover

Details: https://github.com/openbmc/webui-vue/issues/38

Signed-off-by: MichalX Szopinski <michalx.szopinski@intel.com>
Change-Id: I956938186fa06b9670cb716979572a3b8d6a1b6a
diff --git a/src/components/Global/TableToolbarExport.vue b/src/components/Global/TableToolbarExport.vue
index ed1d980..59642f5 100644
--- a/src/components/Global/TableToolbarExport.vue
+++ b/src/components/Global/TableToolbarExport.vue
@@ -1,11 +1,12 @@
 <template>
-  <b-link
-    class="btn btn-primary d-block align-self-center"
+  <b-button
+    class="d-flex align-items-center"
+    variant="primary"
     :download="download"
     :href="href"
   >
     {{ $t('global.action.export') }}
-  </b-link>
+  </b-button>
 </template>
 
 <script>