Add GMap component for rendering a map with gomponents

internal/view/web/component/gmap.go

@@ -0,0 +1,9 @@
+package component
+
+import "github.com/maragudk/gomponents"
+
+// GMap is a convenience function to render a gomponents.Group
+// with a map inside.
+func GMap[T any](ts []T, cb func(T) gomponents.Node) gomponents.Node {
+	return gomponents.Group(gomponents.Map(ts, cb))
+}