[ACA] exclude calendar events from Recent Files

[adinapitul]

PR Checklist

Please check if your PR fulfills the following requirements:

- [ ] The commit message follows our guidelines: https://github.com/Alfresco/alfresco-content-app/blob/master/CONTRIBUTING.md#commit
- [ ] Tests for the changes have been added (for bug fixes / features)
- [ ] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application / Infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[ ] No

Other information

[codecov-io]

Codecov Report

Merging #876 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development     #876   +/-   ##
============================================
  Coverage        63.61%   63.61%           
============================================
  Files              118      118           
  Lines             4076     4076           
  Branches           683      683           
============================================
  Hits              2593     2593           
  Misses            1358     1358           
  Partials           125      125

Impacted Files	Coverage Δ
src/app/services/data.service.ts	35.29% <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 eca3c05...29f0622. Read the comment docs.