Inconsistent variable "boulder" vs "bouldering"

[vnugent]

For some unknown reason, the backend and frontend use boulder and bouldering interchangeably for the climbing style/a boulder problem. We should address this at some point as it causes confusion and bugs.

[clintonlunn]

I've found a few mentions of this issue of bouldering vs. boulder in the openbeta-graphql repository that might give an indication about why:

• The climbType schema
• a mention about how bouldering/boulder is causing issues