BlockTypeDropdown cannot update to different levels of heading

[prathameshjchavan]

Describe the bug
Once we defined a block for a particular level of heading, let's say we have added a block of type heading of level 1.
Then, if we try to change the block to the heading of level 2, it doesn't update.

To Reproduce

1. Open Editor
2. Select the block type as Heading (H1) by typing '/heading' and clicking enter
3. Enter some text into it
4. Select the whole text and the formatting toolbar appears
5. Select Heading 2 (H2) from the BlockType Dropdown

• Node version: v18.17.1
• Package manager: npm
• Browser: Chrome Version 116.0.5845.111 (Official Build) (64-bit)

[matthewlipski]

Fixed in 0.9.3!