Figma kit deprecation strategy for core migration

[RichKummer]

We need a strategy for deprecating Figma components that are migrating to the Carbon core library.

### Tasks
- [ ] https://github.com/carbon-design-system/ibm-products/issues/5490
- [ ] Align listed components to deprecation dates, [recorded in airtable](https://airtable.com/appY30x3q9FcdIcL1/tbl81O5yRLA4gGh1T/viwKoCM8MSBRTtvZ1?blocks=hide)
- [ ] Slack announcements in pal channel for Figma migration
- [ ] Make a note in Figma kit the component is moved/deprecated