Replace yarn lock

[SallyMcGrath]

Describe the bug
A clear and concise description of what the bug is.
There's no yarn lock
To Reproduce
Steps to reproduce the behavior:

1. Go to root of folder
2. No yarn lock

Expected behavior
We removed this in a branch for speed
Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.