Split application files for project and namespace levels in Usage Quotas Storage

This is maintenancerefactor task to split files inside of app/assets/javascripts/usage_quotas/storage folder into two subfolders, separating component, utils, and graphql files. Currently app/assets/javascripts/usage_quotas/storage directly contains files for the two apps, mixed together, which complicates code navigation.

MRs to address this:

task	link
Move out usage quotas storage tab component files for Projects	!145554 (merged)
Split the GraphQL files	!147846 (merged)
Move out usage quotas storage tab component files for Namespaces	!177855 (merged)
Split the utilities and constant files	!180242 (merged)