fix: update video URLs in onchain-holiday.mdx and remove obsolete video files

Author: h4rkl

apps/media/content/posts/onchain-holiday.mdx

@@ -30,7 +30,7 @@ Your magic internet money is bored. It’s time to use it for real-world holiday
 We are pleased to announce [Onchain Holiday](https://onchain.holiday): an online shopping event running from 5-12 December that allows users to spend their stablecoins and memecoins on merchandise from over a dozen brands and retailers. This catalog, powered by [blinks (blockchain links)](https://solana.com/solutions/actions) on Solana and [Helio’s Solana Pay x Shopify plugin](https://apps.shopify.com/solana-pay-helio), will make it easy for crypto users to do their holiday shopping.
 
 <video
-  url="/video/assets_ce0c7323a97a4d91bd0baa7490ec9139_d44890f7edeb4010a55f069cd4bf7b68_compressed.mp4"
+  url="/uploads/video/assets_ce0c7323a97a4d91bd0baa7490ec9139_d44890f7edeb4010a55f069cd4bf7b68_compressed.mp4"
   loop={true}
   autoPlay={true}
   controls={false}
@@ -51,7 +51,7 @@ Customers will be able to cop over 50+ products, including:
 Get your wallet ready. Onchain Holiday starts now!
 
 <video
-  url="/video/assets_ce0c7323a97a4d91bd0baa7490ec9139_547e240c763d4c0f9da48573b072eba2_compressed.mp4"
+  url="/uploads/video/assets_ce0c7323a97a4d91bd0baa7490ec9139_547e240c763d4c0f9da48573b072eba2_compressed.mp4"
   loop={true}
   autoPlay={true}
   controls={false}