Since [1] when the stars were made available in the power box, an
exception is raised when clicking on a technical SVG of the "Steps"
block.
This happens because SVGs have their `nodeType === Node.ELEMENT_NODE`,
they have `className` and `classList` properties, but their `className`
is not a string: it is an `SVGAnimatedString`. Because of this, the
`includes` method is not available on `className`.
This commit prevents the non-existing `includes` from being called.
Steps to reproduce:
- Drop a "Steps" block into the page.
- Click on the column before the first step, at the same height as the
steps icons. (There is an hidden SVG there containing the definition of
the arrows head.)
=> Did raise an exception.
[1]: https://github.com/odoo/odoo/commit/8266b978e1bfa5bedfaf1c4fcceadd26400fc85c
task-2845963
X-original-commit: dbfbf264750a0760d4f2d96a1b7a13ea27472316
Part-of: odoo/odoo#96071
Benoit Socias
135aacd33c