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/components/open/editors/FontCard.vue

@@ -59,7 +59,7 @@ const props = defineProps({
   }
 })
 
-const emit = defineEmits(['select-font'])
+defineEmits(['select-font'])
 
 const getFontUrl = computed(() => {
   const family = props.fontName.replace(/ /g, '+')

client/components/open/editors/GoogleFontPicker.vue

@@ -80,7 +80,7 @@ const props = defineProps({
   },
 })
 
-const emit = defineEmits(['close','apply'])
+defineEmits(['close','apply'])
 const loading = ref(false)
 const fonts = ref([])
 const selectedFont = ref(props.font || null)