Update base.html

Currently, when adding new client it's tile is not drawn if wg-ui is run in some path.
https://server.tld - will work fine
https://server.tld/wg-ui/ will fail adding tile.

templates/base.html

@@ -376,7 +376,7 @@
                     $("#modal_new_client").modal('hide');
                     toastr.success('Created new client successfully');
                     // Update the home page (clients page) after adding successfully
-                    if (window.location.pathname === "/") {
+                    if (window.location.pathname === "{{.basePath}}/") {
                         populateClient(resp.id);
                     }
                 },