feat(rtl): add text-start and text-end (#11213)

Author: AmitMY

src/components/app/app.scss

@@ -305,6 +305,14 @@ ion-footer {
   text-align: right;
 }
 
+[text-start] {
+  text-align: start;
+}
+
+[text-end] {
+  text-align: end;
+}
+
 [text-justify] {
   text-align: justify;
 }