[RGTC-1736] Fix image display in WYSIWYG

[shuklina]

Fix image display in WYSIWYG for YNorth: https://github.com/ymcatwincities/yn/pull/5487

Original Issue, this PR is going to fix: REPLACE WITH A LINK TO ISSUE ( publicly available )

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Thank you for your contribution!

[podarok]

Thank you @shuklina We are in a code freeze, will be merged after tomorrow's release

[gundevel]

Build comment file:

Check Open Y Installation Wizard at http://install.openy.cibox.tools/build3318/install.php

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[gundevel]

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