Update data option for components using Mixin data

- Removed all the data options from all the mixins.
- Updated component data property relying on data property defined in
  mixin.
- Export data property from mixin file itself.

Signed-off-by: Suren Neware <sneware9@in.ibm.com>
Change-Id: I4aeffcb333bbaf5b78bcadd711b3169b0b4cb10e
diff --git a/src/components/Mixins/TableRowExpandMixin.js b/src/components/Mixins/TableRowExpandMixin.js
index d5246cd..7f815a4 100644
--- a/src/components/Mixins/TableRowExpandMixin.js
+++ b/src/components/Mixins/TableRowExpandMixin.js
@@ -1,9 +1,7 @@
+import i18n from '@/i18n';
+export const expandRowLabel = i18n.t('global.table.expandTableRow');
+
 const TableRowExpandMixin = {
-  data() {
-    return {
-      expandRowLabel: this.$t('global.table.expandTableRow'),
-    };
-  },
   methods: {
     toggleRowDetails(row) {
       row.toggleDetails();