replace function getProjectConfig with const

[groninge01]

packages/lib/config/getProjectConfig.ts

export const PROJECT_CONFIG = process.env.NEXT_PUBLIC_PROJECT_ID
  ? allProjects[process.env.NEXT_PUBLIC_PROJECT_ID]
  : ProjectConfigBalancer

export const isBeetsProject = PROJECT_CONFIG.projectId === 'beets'
export const isBalancerProject = PROJECT_CONFIG.projectId === 'balancer'

// TODO replace with just PROJECT_CONFIG everywhere
export function getProjectConfig() {
  return PROJECT_CONFIG
}