Suggestion: Rename 'Block container' to 'Flow container'

[gitspeaks]

The word "block" is used in various contexts, appearing in 10 different terms across the glossary. This creates cognitive overhead for readers.

In essence, a "block container" is an element where the flow layout (also known as block-and-inline layout) begins or resumes. This is consistent with the fact that an element functions as a "block container" when its inner display property is set to flow or flow-root.

Referring to a "block container" by its actual purpose—"flow container"—would greatly reduce this mental burden and improve clarity.

[Loirooriol]

Duplicate of #1265

[gitspeaks]

After reconsideration, I believe this issue should remain open. There isn’t an actual API name using this term, and perpetuating this confusion for future generations of CSS developers serves no purpose beyond nostalgia.