Make table border=none setting work

[map-r]

Suggested merge commit message (convention)

Fix (table): Changed default table and table cell properties to match the content styles. Fixes problem with setting border = none on the table. Closes #6841.

---

[map-r]

@DawidKossowski Outro for this task/PR:

as @oleq validly pointed out deeper problems with how we treat default values in config vs in styles and what should we do with customizing them in a valid priority - you can at least see it in the comments here #14921 (comment)