added theme for aem corecomponents.dev

[egmox]

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes and the overall coverage did not decrease.
• All unit tests pass on CircleCi.
• I ran all tests locally and they pass.

[adobe-bot]

Lighthouse scores (mobile)

	Performance	Accessibility	Best-Practices	SEO
Scores	90	100	100	73

[adobe-bot]

Lighthouse scores (desktop)

	Performance	Accessibility	Best-Practices	SEO
Scores	100	100	100	73

[adobe-bot]

Accessibility Violations Found

Id	Impact
label-title-only	serious
landmark-one-main	moderate
region	moderate

[codecov]

Codecov Report

Merging #931 (7b5a231) into dev (80d54f6) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##                dev     #931   +/-   ##
=========================================
  Coverage     80.56%   80.56%           
  Complexity      735      735           
=========================================
  Files            91       91           
  Lines          2048     2048           
  Branches        271      271           
=========================================
  Hits           1650     1650           
  Misses          248      248           
  Partials        150      150           

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