ux: make url on summary screen stretch to fill in space.

rhodecode/public/css/summary.less

@@ -57,9 +57,13 b''
           white-space: pre-wrap;
         }
 
-        #clone_url,
+        #clone_url {
+            width: ~"calc(100% - 96px)";
+            padding:  @padding/4;
+        }
+
         #clone_url_id {
-            min-width: 29em;
+            width: ~"calc(100% - 118px)";
             padding:  @padding/4;
         }