First thing, PLEASE READ THIS: ReactPlay Code Review Checklist

Description

Cypress test fails because it tests twitter tweets but the tweets were replaced by the testimonial.

On localhost, sometimes contributors test fails too.

Sometimes tests fail just because of the timeout is too short
Fixes #1251

Type of change

Replace the current tests by new one for homepage.
Add minimum test for leaderboard and ideas.
Add a longer timeout to cypress config

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Use it another branch where tests are done before push
Run locally with cypress:run too

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

run cypress:run

Checklist:

• I have performed a self-review of my own 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
• Any dependent changes have been merged and published in downstream modules

Screenshots or example output