feature: get admin setting api endpoint
feature: get categories endpoint
feature: get currencies endpoint
feature: get fixer api endpoint
feature: get household api endpoint
feature: get notifications api endpoint
feature: get payment methods api endpoint
feature: get settings api endpoint
feature: get user api endpoint
feat: user has api key available on profile page
feat: api endpoint to calculate monthly cost
feat: split settings page into settings and profile page
feat: redesigned experimental mobile navigation menu
fix: small fixes and typos
