Add client linting to GitHub Actions workflow

Enhance CI/CD pipeline by introducing a new job to run ESLint on the client application. This ensures code quality and consistency for the frontend codebase.

client/middleware/custom-domain.global.js

@@ -32,8 +32,6 @@ function redirectToMainDomain(details = {}) {
 export default defineNuxtRouteMiddleware((to) => {
   if (!customDomainUsed()) return
 
-  const config = useRuntimeConfig()
-
   const customDomainHeaderValue = useRequestHeaders()[customDomainHeaderName]
   if (
     import.meta.server &&

client/middleware/self-hosted-credentials.js

@@ -1,6 +1,5 @@
 export default defineNuxtRouteMiddleware(() => {
   const authStore = useAuthStore()
-  const runtimeConfig = useRuntimeConfig()
 
   if (useFeatureFlag('self_hosted')) {
     if (authStore.check && authStore.user?.email === 'admin@opnform.com') {