chore: bump version to 0.7.0-beta.1

[enjeck]

• fix: Properly insert rows into views for the new db structure #811

[datenangebot]

@enjeck I think it would be good to add the changelog for the version 0.6.6 for consistency in here?!

[datenangebot]

Maybe we should also add:

new

• API v2 and docs in API viewer
• icon replaced
• occ commands for manual data transfer and cleanup

[enjeck]

@juliushaertl Need this approved again

[juliusknorr]

@enjeck I added #811 as a checkbox item to the description

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