fix: allow reads/writes to description without team collab feature

[raquelmsmith]

Problem

If someone has dashboard descriptions saved, but no longer has the TEAM_COLLABORATION feature, trying to get this resource from the API would 403. However, the migration script depends on being able to read/write these descriptions, and we don't want to not migrate them because if the team wants them back at some point, re-migrating just these bits is a pain.

See: https://posthog.slack.com/archives/C043VJ93L3B/p1710161924625399

Changes

• Allows read/writes of this field from the API.
• No longer shows the description in the UI if they don't have the feature.
• Modifies EditableField paywall functionality to use standard UpgradeModal instead of a different custom implementation

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Does this work well for both Cloud and self-hosted?

It should!

How did you test this code?

We may see some cypress failures here, if so I'll fix, if not I'll update.

[github-actions]

Size Change: 0 B

Total Size: 824 kB

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Filename	Size
frontend/dist/toolbar.js	824 kB

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