[FEATURE REQUEST] Import: overwrite all except subscribe status

[SnejPro]

First of all: Great work! This tool is great. Is it possible to support your work monetary? We have a "christmas donation open source budget" at would like to donate for this project.

Is your feature request related to a problem? Please describe.
We manage our customer database outside of listmonk. But the subscription-status is managed by listmonk alone. So if there is a change in customer data we would like to import them in listmonk. But we cannot activate the "Overwrite"-switch because this would overwrite the subscription status and we would send newsletters to people who have unsubscribed or were blocked because of bounces, etc.

Describe the solution you'd like
A switch to overwrite all data-fields of a subscriber except subscribtion- and blocklisted-status.

[MaximilianKohler]

I would like this too. "Blocklisted" doesn't get overwritten though.