+ at the top right of each stack

Bug Description

image

Click the plus icon at the top right of each stack will create a new card appended to the bottom.
I expect that it would add a new card to the top of the entire stack

How to Reproduce

As shown in the screenshot

Expected Behavior

the new card is added to the top of the stack

Operating System

Windows 11

AppFlowy Version(s)

v0.2.2

Screenshots

No response

Additional Context

No response