table view: fix alert and buttons visibility for table without primary keys

Author: lyubov-voloshko

frontend/src/app/components/dashboard/dashboard.component.css

@@ -94,6 +94,8 @@
 }
 
 .alerts {
+    display: flex;
+    flex-direction: column;
     margin-top: 24px;
 }
 

frontend/src/app/components/dashboard/db-tables-data-source.ts

@@ -236,7 +236,7 @@ export class TablesDataSource implements DataSource<Object> {
             .reduce((normalizedColumns, column) => (normalizedColumns[column.title] = column.normalizedTitle, normalizedColumns), {})
           this.displayedDataColumns = (filter(this.columns, column => column.selected === true)).map(column => column.title);
           this.permissions = res.table_permissions.accessLevel;
-          if (this.keyAttributes.length && this.permissions.edit || this.permissions.delete) {
+          if (this.keyAttributes.length && (this.permissions.edit || this.permissions.delete)) {
             this.actionsColumnWidth = this.getActionsColumnWidth(this.tableActions, this.permissions);
             this.displayedColumns = ['select', ...this.displayedDataColumns, 'actions'];
           } else {