FIX: Trim the profile text in the user card even if it has multiple lines.

app/assets/javascripts/discourse/components/text-overflow.js.es6

@@ -0,0 +1,9 @@
+export default Ember.Component.extend({
+  _parse: function() {
+    this.$().ellipsis();
+  }.on('didInsertElement'),
+
+  render: function(buffer) {
+    buffer.push(this.get('text'));
+  }
+});