feature/dwn database state (#18)

* refactor: move database, navigator scripts to state package

* feat: add Schema config for dwn

* test: add unit tests for InitializeDatabase

* feat: use templated index.html for the DWN frontend

* feat: introduce templ generation for templ

* chore(deps): update devbox.json to use latest packages

* chore: update devbox to use bun

* feat: introduce dwn config generation

* feat: add motr.mjs for vault management

* refactor: move front end from  to  (alert)

* feat: implement devbox integration and devbox-based process management

* feat: embed motr.mjs script for offline demo

* refactor: embed motr.mjs data in embed.go

* chore: update workflows to use actions/checkout@v4

* refactor: move process-compose.yaml to deploy directory

* refactor: remove unnecessary JSON conversion

pkg/nebula/blocks/blocks.go

@@ -0,0 +1,47 @@
+package blocks
+
+import (
+	"strings"
+
+	"github.com/a-h/templ"
+)
+
+type Icon interface {
+	Render() templ.Component
+}
+
+type Variant interface {
+	Attributes() templ.Attributes
+}
+
+func clsxMerge(variants ...Variant) templ.Attributes {
+	combinedAttrs := templ.Attributes{}
+	var classElements []string
+
+	for _, variant := range variants {
+		attrs := variant.Attributes()
+		if class, ok := attrs["class"].(string); ok {
+			classElements = append(classElements, strings.Fields(class)...)
+		}
+		for key, value := range attrs {
+			if key != "class" {
+				combinedAttrs[key] = value
+			}
+		}
+	}
+
+	if len(classElements) > 0 {
+		combinedAttrs["class"] = strings.Join(classElements, " ")
+	}
+	return combinedAttrs
+}
+
+func clsxBuilder(classes ...string) templ.Attributes {
+	if len(classes) == 0 {
+		return templ.Attributes{}
+	}
+	class := strings.Join(classes, " ")
+	return templ.Attributes{
+		"class": class,
+	}
+}