feature/did accounts (#23)

* feat: add support for DID number as primary key for Controllers

* refactor: rename pkg/proxy to app/proxy

* feat: add vault module keeper tests

* feat(vault): add DID keeper to vault module

* refactor: move vault client code to its own package

* refactor(vault): extract schema definition

* refactor: use vaulttypes for MsgAllocateVault

* refactor: update vault assembly logic to use new methods

* feat: add dwn-proxy command

* refactor: remove unused context.go file

* refactor: remove unused web-related code

* feat: add DWN proxy server

* feat: add BuildTx RPC to vault module

* fix: Implement BuildTx endpoint

* feat: add devbox integration to project

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,
+	}
+}