Inherit widget name from parent

[Jan200101]

No description provided.

[Guldoman]

The issue with this approach is that widgets with a parent will never use their own name.

What do you think about either:

1. Making it inherit the name from the parent in Widget:new, and returning that in get_name. This way if a widget sets a name, it will override the inherited one. Main drawback is that this won't follow changes to the parent's name.
2. Setting it to nil in new, the using the parent's name in get_name, if self.name is still nil. This would allow setting a custom name, as well as following changes to the parent's name. Main drawback here is that things might not do a nil check when using Widget.name directly.

[Jan200101]

This PR came from a PR I made to Pragtical which was merged as is.
Change it if you want, I don't care and its open to be edited by maintainers

[Jan200101]

coming back to this
I don't think 1 is a good fit because if the parent changes its name it would never be inherited

2 sounds good tho