Pressing ArrowUp cannot move text cursor

[ocavue]

After upgrading prosemirror-view from 1.31.6 to 1.31.7, we found a bug with text cursor movement. If the cursor is right after an inline atom node, pressing ArrowUp cannot move the cursor anymore.

Reproduction:

1. Open the following two links. They are the same code, but one is using prosemirror-view 1.31.6 and another is using 1.31.7
   • https://codesandbox.io/p/sandbox/prosemirror-view-inline-atom-1-31-7-5mn8yy
   • https://codesandbox.io/p/sandbox/prosemirror-view-inline-atom-1-31-6-9fhr3k
2. Put the text cursor at the end of the yellow InlineAtom node
3. Press ArrowUp

Expected behavior: the text cursor moves up

https://github.com/ProseMirror/prosemirror/assets/24715727/ae475e49-f863-49f8-9966-2768fa6e4705

Actually behavior: in the 1.31.7 demo, the text cursor doesn't move

https://github.com/ProseMirror/prosemirror/assets/24715727/bf805cc9-1874-4890-a6d0-92db8fb16ade

[marijnh]

This patch should help.

[ocavue]

Thank you!