[chores] Fixed unsaved changes alert for readonly map #560

For readonly mode the field name used to track geometry field
is different leading to its json value not being parsed, hence
leading to unsaved_changes alert. A small change of addition
of the said field in 'jsonValues' of 'unsaved_changes.js' Fixed
it.
Also increased the timeout for waiting of success message present
for selenium test of device admin to tackle TimeoutException.

Closes #560

Signed-off-by: DragnEmperor <[email protected]>

Author: DragnEmperor

openwisp_controller/config/static/config/js/unsaved_changes.js

@@ -11,6 +11,7 @@
             "config-0-config",
             "config-0-context",
             "devicelocation-0-geometry",
+            "geometry",
           ];
         // ignore fields that have no name attribute, begin with "_" or "initial-"
         if (

openwisp_controller/geo/tests/test_selenium.py

@@ -27,6 +27,10 @@ class TestDeviceAdminSelenium(
     def _get_prefix(cls):
         return cls.inline_field_prefix
 
+    # set timeout to 5 seconds to allow enough time for presence of elements
+    def wait_for_presence(self, by, value, timeout=5, driver=None):
+        return super().wait_for_presence(by, value, timeout, driver)
+
     def _fill_device_form(self):
         org = self._get_org()
         self.find_element(by=By.NAME, value='mac_address').send_keys(