tightening coverage + some cleanup

library/core/components/option-node.ts

@@ -5,7 +5,7 @@ import type { OptionProps } from "./option"
 export class OptionNode extends Node<OptionProps> {
   get options(): MessageSelectOptionOptions {
     return {
-      label: this.props.children || this.props.label || this.props.value || "",
+      label: this.props.children || this.props.label || this.props.value,
       value: this.props.value,
       description: this.props.description,
       emoji: this.props.emoji,

library/internal/text-node.ts

@@ -3,6 +3,6 @@ import { Node } from "./node.js"
 
 export class TextNode extends Node<string> {
   override modifyMessageOptions(options: MessageOptions) {
-    options.content = (options.content ?? "") + this.props
+    options.content = options.content + this.props
   }
 }