Move general CSS to more specific so as not to affect other dialogs

src/skins/vector/css/_common.scss

@@ -248,7 +248,6 @@ textarea {
 .mx_Dialog_title {
     min-height: 16px;
     padding-top: 40px;
-    padding-right: 40px;
     font-weight: bold;
     font-size: 22px;
     line-height: 1.4;

src/skins/vector/css/matrix-react-sdk/views/dialogs/_SetMxIdDialog.scss

@@ -15,6 +15,10 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+.mx_SetMxIdDialog .mx_Dialog_title {
+    padding-right: 40px;
+}
+
 .mx_SetMxIdDialog_input_group {
     display: flex;
 }