fix(inertia): always rendering an anchor tag

src/runtime/inertia/components/Link.vue

@@ -110,14 +110,14 @@ const linkClass = computed(() => {
 })
 
 const page = usePage()
-const url = computed(() => props.to ?? props.href ?? '#')
+const url = computed(() => props.to ?? props.href ?? '')
 
-const isActive = computed(() => props.active || (props.exact ? url.value === props.href : page?.url.startsWith(url.value)))
+const isActive = computed(() => props.active || (!!url.value && (props.exact ? url.value === props.href : page?.url.startsWith(url.value))))
 </script>
 
 <template>
-  <template v-if="!isExternal">
+  <template v-if="!isExternal && !!url">
-    <InertiaLink v-bind="routerLinkProps" :href="url" custom>
+    <InertiaLink v-bind="routerLinkProps" :href="url">
       <template v-if="custom">
         <slot
           v-bind="{