Refactor copy logic to remove deprecated execCommand

Co-authored-by: PR0M3TH3AN <[email protected]>

js/ui/components/EmbedVideoModal.js

@@ -399,6 +399,7 @@ export class EmbedVideoModal {
       return;
     }
 
+    // Attempt to copy using the Clipboard API
     if (navigator?.clipboard?.writeText) {
       try {
         await navigator.clipboard.writeText(snippet);
@@ -409,24 +410,13 @@ export class EmbedVideoModal {
       }
     }
 
+    // Fallback: Select the text so the user can copy manually
     const textarea = this.snippetTextarea;
     textarea.focus();
     textarea.select();
     textarea.setSelectionRange(0, textarea.value.length);
 
-    let succeeded = false;
-    try {
-      succeeded = this.document.execCommand("copy");
-    } catch (error) {
-      logger.user.warn("Embed modal copy fallback failed.", error);
-      succeeded = false;
-    }
-
-    if (succeeded) {
-      this.callbacks.showSuccess("Embed code copied to clipboard!");
-    } else {
-      this.callbacks.showError("Unable to copy embed code. Please copy it manually.");
-    }
+    this.callbacks.showError("Unable to copy embed code. Please copy it manually.");
   }
 
   async open({ video, triggerElement } = {}) {