Add YT script loader for data bank

public/scripts/extensions/attachments/youtube-scrape.html

@@ -0,0 +1,20 @@
+<div>
+    <strong data-i18n="Enter a video URL to download its transcript.">
+        Enter a video URL or ID to download its transcript.
+    </strong>
+    <div data-i18n="Examples:" class="m-t-1">
+        Examples:
+    </div>
+    <ul class="justifyLeft">
+        <li>https://www.youtube.com/watch?v=jV1vkHv4zq8</li>
+        <li>https://youtu.be/nlLhw1mtCFA</li>
+        <li>TDpxx5UqrVU</li>
+    </ul>
+    <label>
+        Language code (optional 2-letter ISO code):
+    </label>
+    <input type="text" class="text_pole" name="youtubeLanguageCode" placeholder="e.g. en">
+    <label>
+        Video ID:
+    </label>
+</div>