⚠️ Fix most animations/transitions performance issues

- Basically add `will-change` to CSS elements to enable GPU animations, less choppy, more sassy
- Use requestAnimationFrame over setTimeout
- Avoid repaints AMAP

src/routes/sitemap.xml.js

@@ -8,9 +8,10 @@ let baseURL
 const pages = ['']
 
 // Get routes and push it to array
+const routesExclude = ['sitemap', 'index', 'location', 'viewer']
 fs.readdirSync('./src/routes').forEach(file => {
     const filename = file.split('.')[0]
-    if (!file.startsWith('.') && !filename.startsWith('_') && ['sitemap', 'index', 'location', 'viewer'].indexOf(filename) === -1) {
+    if (!file.startsWith('.') && !filename.startsWith('_') && routesExclude.indexOf(filename) === -1) {
         pages.push(filename)
     }
 })