fix: up to 12 events should be listed in cfs

[maze-runnar]

Fixes #4697
3. Call for Speakers

• Up to 12 events should be listed here and there should be a "more link" below to show more events on the cfs page if there are more events

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

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[codecov]

Codecov Report

Merging #5679 (156fa60) into development (5d34f21) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #5679   +/-   ##
============================================
  Coverage        23.72%   23.72%           
============================================
  Files              498      498           
  Lines             5277     5277           
  Branches            47       47           
============================================
  Hits              1252     1252           
  Misses            4017     4017           
  Partials             8        8           

Impacted Files	Coverage Δ
app/routes/index.js	78.57% <ø> (ø)

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[iamareebjamal]

This shouldn't need a change now

[maze-runnar]

{{#each this.model.callForSpeakersEvents as |event|}} or {{#each this.cfsEvent as |event|}}

[iamareebjamal]

The change

[maze-runnar]

I reverted it to previous didn't made any changes in this file.