[REF] web: Update generic files

General cleaning of some helpers and generic files. The idea is that they are
less likely to be entirely re-written in the near future so this is a way to
keep the code clean, readable and compliant to the current standards. Changes include:
- Use of async/await when possible
- Use of const/let instead of var
- Removal of underscore.js
- Use of native JS instead of jQuery when possible

The logic of the affected code remains the same.

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/web/static/tests/helpers/test_utils_mock.js b/addons/web/static/tests/helpers/test_utils_mock.js
index e72dcc0d692..bb2d1ef24a5 100644
--- a/addons/web/static/tests/helpers/test_utils_mock.js
+++ b/addons/web/static/tests/helpers/test_utils_mock.js
@@ -465,7 +465,7 @@ function intercept(widget, eventName, fn, propagate) {
  * @param {integer} hours the digits for hours (24h)
  * @param {integer} minutes
  * @param {integer} seconds
- * @returns {function} a callback to unpatch window.Date.
+ * @returns {Function} a callback to unpatch window.Date.
  */
 function patchDate(year, month, day, hours, minutes, seconds) {
     var RealDate = window.Date;