Refactor server and templates package

internal/dis/component/server/assets/templates.go

@@ -0,0 +1,23 @@
+package assets
+
+import (
+	"embed"
+	"html/template"
+)
+
+//go:embed "templates/*.html"
+var templates embed.FS
+
+var (
+	shared *template.Template = template.Must(template.ParseFS(templates, "templates/*.html"))
+)
+
+// NewSharedTemplate creates a new template with the given name.
+// It will be able to make use of shared templates as well as functions.
+func NewSharedTemplate(name string) *template.Template {
+	new := template.New(name)
+	for _, template := range shared.Templates() {
+		new.AddParseTree(template.Tree.Name, template.Tree.Copy())
+	}
+	return new
+}