Always show 'Add Block' button in toolbar

When adding a block that is not in my quick inserter list, my favourite flow is by clicking the ‘Add Block’ button that is located in the edit toolbar. However, this toolbar is only shown on container type blocks. I understand this approach, since you can’t insert a new block inside a paragraph or image, but I feel like the button should still be shown to insert a block after the currently selected block. Just like it works when using the quick inserter or the core Wordpress inserter.

I expect this consistency to work great for people who are new to Cwicly.