Use pull request #10967 from DanielRuf/patch/unit-tests-headless-chrome for v6.5.0

Use pull request #10967 from DanielRuf/patch/unit-tests-headless-chrome for v6.5.0

1e789d5c5 tests: migrate to mocha-headless-chrome
3e86d6e39 revert GetDimensions() unit test change for IE11
58ca2385e fire opened.zf.offcanvas after adding the classes to prevent some race conditions
5c91b76b5 trigger opened.zf.offcanvas at the end
5744ead7a reflect change of npm script name in readme
1e1b34994 Revert "fire opened.zf.offcanvas after adding the classes to prevent some race conditions"
c5ef695c7 Revert "trigger opened.zf.offcanvas at the end"
12ae1a917 revert component file and test to initial state
2eee4044e remove whitespace from empty line
137edac31 add missing whitespace to empty line
8922cf6ce chore: update package-lock for mocha-headless-chrome

Co-Authored-By: Daniel Ruf <daniel.ruf@ueberbit.de>
Co-Authored-By: Nicolas Coden <nicolas@ncoden.fr>
Signed-off-by: Nicolas Coden <nicolas@ncoden.fr>