fix: initialized the button text at creation

src/ui/BaseUI.ts

@@ -56,6 +56,11 @@ export class BaseUI {
   private createPlayButton(): void {
     const playButton = document.createElement("button");
     playButton.className = this.prefixClass + "-playButton";
+    if (this.video.paused) {
+      playButton.innerText = "play";
+    } else {
+      playButton.innerText = "pause";
+    }
 
     this.video.addEventListener("play", function (): void {
       playButton.innerText = "pause";