Improved TA section, added date sorting

src/pages/ta-collection.astro

@@ -19,6 +19,8 @@ const important_data = tadata.filter(function (el) {
   ].includes(el.title)
 })
 
+tadata.sort((a, b) => Date.parse(b.date) - Date.parse(a.date))
+
 const description = 'A collection of TAs previously completed be Firq.'
 ---