Added Support for MDX

[KingDarBoja]

Fixes #1766

Changes proposed:

• Add
• Delete
• Fix
• Prepare

[codecov]

Codecov Report

Merging #1895 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1895   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          75      75           
  Lines        5474    5474           
  Branches      127     127           
======================================
  Hits         5474    5474

Impacted Files	Coverage Δ
src/iconsManifest/supportedExtensions.ts	100% <ø> (ø)	⬆️

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[codecov]

Codecov Report

Merging #1895 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1895   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          75      75           
  Lines        5474    5474           
  Branches      127     127           
======================================
  Hits         5474    5474

Impacted Files	Coverage Δ
src/iconsManifest/supportedExtensions.ts	100% <ø> (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 8bc164f...e96607a. Read the comment docs.

[JimiC]

Not sure that the icon will look good on dark themes.