add youtube links for non-nvchad config setup & wrap iframe with container class for fullscreen

Author: siduck

src/routes/news/nvui.mdx

@@ -19,6 +19,12 @@ NvChad got famous due to its look, which are powered by its Base46 & UI plugin!
 
 Now Non NvChad users can use both the plugins! check ui repo's readme for more info.
 
+> Video showing setup of nvui on non nvchad configs!
+
+<div class="iframe-container">
+<iframe src="https://www.youtube.com/embed/lhwcaAS66nQ?si=VYvg44IiJB6k9PPU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+</div>
+
 Note: These are changelogs for entire of NvChad.
 
 ## Changelog

src/routes/news/volt.mdx

@@ -22,7 +22,9 @@ Beautiful color picker tool for Neovim. [repo url](https://github.com/NvChad/min
 ![shades](https://github.com/user-attachments/assets/d499748b-d9c8-4a92-89ba-bfce1814c275)
 ![huefy](https://github.com/user-attachments/assets/504ba2a1-9d83-492c-9913-f0e159ef9ad8)
 
+<div class="iframe-container">
 <iframe width="560" height="315" src="https://www.youtube.com/embed/NHC4jLoR_zI?si=E9upX0ZWT-c5q7v6" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+</div>
 
 ## Menu
 
@@ -31,4 +33,6 @@ Extensible menu & sub-menus creator . [repo url](https://github.com/NvChad/menu)
 ![image](https://github.com/user-attachments/assets/c8402279-b86d-432f-ad11-14a76c887ab1)
 ![image](https://github.com/user-attachments/assets/d70430e1-74d2-40dd-ba60-0b8919d53af6)
 
+<div class="iframe-container">
 <iframe width="560" height="315" src="https://www.youtube.com/embed/VauET3tR2J4?si=cT1BTkgXweBTNZWW" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+</div>