feat: Introduce RouterViewPlaceholder component and assign it to the database-table-row route. (baserow#4751)

Author: jonadeline

web-frontend/modules/core/components/RouterViewPlaceholder.vue

@@ -0,0 +1,15 @@
+<template>
+  <div></div>
+</template>
+
+<script>
+/**
+ * This component is used as a placeholder for routes that do not have a component
+ * but need one to satisfy the router. It renders nothing, allowing the parent route
+ * or router-view to handle the structure. This is particularly useful for nested
+ * routes where a segment is logical but has no specific UI representation itself.
+ */
+export default {
+  name: 'RouterViewPlaceholder',
+}
+</script>

web-frontend/modules/database/routes.js

@@ -14,6 +14,10 @@ export const routes = [
       {
         path: 'row/:rowId',
         name: 'database-table-row',
+        file: path.resolve(
+          __dirname,
+          '../core/components/RouterViewPlaceholder.vue'
+        ),
       },
       {
         path: 'webhooks',