771 ks2 performance measure shell page

[morrisscd]

Description

Add shell page for KS2 performance measures

available at
https://get-school-improvement-insights-pr-253.test.teacherservices.cloud/school/primary/123456/ks2

Related Trello Ticket

Trello card.

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• Manual testing performed
• Tested on [Environment: Review app/Local]

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have verified accessibility requirements are met

[github-actions]

Review app for PR 253 was deleted

[github-actions]

Code Coverage Report: Only Changed Files listed

Package	Coverage
Overall Coverage	🟢 76.93%

Minimum allowed coverage is 0%, this run produced 76.93%