fix: undefined functions/properties across frontend (#4210)

* fix: notification mark as read

* revert: composition API change

* fix: categories

* feat: enable vue/no-undef-properties in 'warn' mode.

* fix: app undefined properties

* revert: ss block

* fix: eslint-disable for [version].vue

apps/frontend/src/pages/auth/sign-up.vue

@@ -149,6 +149,7 @@ import { Checkbox, commonMessages, injectNotificationManager } from '@modrinth/u
 import { IntlFormatted } from '@vintl/vintl/components'
 
 import HCaptcha from '@/components/ui/HCaptcha.vue'
+import { getAuthUrl } from '@/composables/auth.js'
 
 const { addNotification } = injectNotificationManager()
 const { formatMessage } = useVIntl()