Add e2e test for checking the Activity Schedule Summary for a filled out APD

[thetif]

resolves #3436

Description-
Adds tests for a filled out Activity Schedule Summary

This pull request changes...

• adds tests for Activity Schedule Summary once the activities have been filled out

This pull request also touches…

• updated some of the page-object names so they would be more interchangeable between the form view and export view

Steps to manually verify this change...

1. pull down PR
2. run npm run cy:run in the integrationTests folder

This pull request is ready to review when...

• Automated tests are updated (and all tests are passing)

This pull request can be merged when…

• Code has been reviewed by someone other than the original author
• QA has verified the accessibility and functionality related to the change
• Design has approved the experience
• Product has approved the experience

[cms-eapd-bot]

This deploy was cleaned up.

[chris-miraflor]

The new test works for me.

[codecov-commenter]

Codecov Report

Merging #3468 (35f5957) into development (26b43dd) will increase coverage by 0.07%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #3468      +/-   ##
===============================================
+ Coverage        88.53%   88.60%   +0.07%     
===============================================
  Files              284      284              
  Lines             5616     5616              
  Branches          1073     1073              
===============================================
+ Hits              4972     4976       +4     
+ Misses             591      587       -4     
  Partials            53       53              

Impacted Files	Coverage Δ
api/files/local.js	38.09% <0.00%> (+19.04%)	⬆️

---

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 26b43dd...35f5957. Read the comment docs.