Fix XSS security with the wysiwyg preview

[soupette]

Signed-off-by: soupette cyril.lpz@gmail.com

What does it do?

The PR fixes a security vulnerability with the WYSIWYG preview.

[codecov]

Codecov Report

Merging #8440 into master will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #8440      +/-   ##
==========================================
- Coverage   33.27%   33.26%   -0.01%     
==========================================
  Files        1220     1221       +1     
  Lines       13625    13629       +4     
  Branches     1357     1357              
==========================================
  Hits         4534     4534              
- Misses       8207     8211       +4     
  Partials      884      884              

Flag	Coverage Δ
#front	24.71% <0.00%> (-0.02%)	⬇️
#unit	54.69% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...nager/admin/src/components/PreviewWysiwyg/index.js	0.00% <0.00%> (ø)
...rc/components/PreviewWysiwyg/utils/satinizeHtml.js	0.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4d00bc0...aedac98. Read the comment docs.

[alexandrebodin]

Tested, works great