Adding Tags to Person entity

One of the core capability of “Hitomemo” is to tag people, so that users can group people by tags. Today I created a screen to create a new tag in Firestore.

I also tried to use ProxyProvider in the Flutter app.

The following assertion was thrown during performLayout():
Each child must be laid out exactly once. The error saud:

The _ScaffoldLayout custom multichild layout delegate forgot to lay out the following child
_ScaffoldSlot.body: RenderFlex#f41a5 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
parentData: offset=Offset(0.0, 0.0); id=_ScaffoldSlot.body

I gave up ProxyProvider and implemented something similar in my own. It worked.