Save user setting to show embed code II

Created by: Tirokk

Authored by ogerly Oct 9, 2019 Merged Oct 10, 2019

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Pullrequest

the user can save in his settings whether he allows or disables the embedding of iframes. in this PR is that https://github.com/Human-Connection/Human-Connection/pull/1682 and the PR https://github.com/Human-Connection/Human-Connection/pull/1657 together

user / settings

contribution / iframe - link only

• fixes #1684 (closed)