[Library] Refactor to reflect component groups

[virresh]

Have also updated node name to avoid conflict with
AEM Forms Container Component teaser node and
Forms and Communications Portal Sidebar Node

Fixes #1484

Q	A
Fixed Issues?	Fixes #1484
Patch: Bug Fix?	No
Minor: New Feature?	No
Major: Breaking Change?	No
Tests Added + Pass?	Yes
Documentation Provided	Yes (code comments and or markdown)
Any Dependency Changes?	No
License	Apache License, Version 2.0

Refactoring of the component library examples page as per instructions given on the original issue. Some additional changes done to prevent conflicts with forms nodes.

Screenshot of re-factored library:

[sonarcloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
6 Code Smells

No Coverage information
3.2% Duplication

[codecov]

Codecov Report

Merging #1862 (e014dd6) into development (62d3f19) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             development    #1862   +/-   ##
==============================================
  Coverage          86.59%   86.59%           
  Complexity          2292     2292           
==============================================
  Files                210      210           
  Lines               6097     6097           
  Branches             926      926           
==============================================
  Hits                5280     5280           
  Misses               332      332           
  Partials             485      485           

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[virresh]

While working on this issue, I noticed https://www.adobe.com/go/aem_cmp_tech_languagenavigation_v2 url is invalid and does not work, other than that all other URLs seem to be working fine.

I don't know how to track/modify adobe.com/go urls that point to specific examples, please let me know if there's a place I can modify them in this repo.

Also another point I am not sure about is the text for "Social Media Sharing" on sidebar. I've kept it the same as the text on front page teaser for now, please let me know if this needs to be changed.

@gabrielwalt @vladbailescu please review

[rismehta]

@vladbailescu @gabrielwalt Can you review this ?

[jckautzmann]

Thx @virresh for your PR! I fixed the go URLs in a separate PR [0] so that we can merge and close this one.

[0] #1868