fix: Clear web page cache after web template is updated

* fix: get_messages_from_include_files
* feat: include labels of navbar items
* refactor: strip -> lstrip

Co-authored-by: gavin <gavin18d@gmail.com>

fix: Use docfields from options if no docfields are returned from meta

fix: Revert naming for custom naming series

fix: Don't evaluate dynamic properties to check if conflicts exist

fix: auto repeat schedule not rendered in the dashboard

fix(setup): do not show messsage when exception is handled (backport #13098)

(cherry picked from commit ac9fe71733)

* Handles semgrep warning
* Changed "" to None as a precaution against future whitespace bugs via human error

Co-authored-by: Ankush Menat <ankushmenat@gmail.com>

test: add unittest for creating new app using boilerplate

fix: Allow to duplicate standard notification

fix: Typo