💄(animations) add animations to smooth out general feeling

the app is your friend now, it's all smooth

src/frontend/panda.config.ts

@@ -58,6 +58,19 @@ const config: Config = {
       xl: '80em', // 1280px
       '2xl': '96em', // 1536px
     },
+    keyframes: {
+      popoverSlide: {
+        from: {
+          transform: 'var(--origin)',
+          opacity: 0,
+        },
+        to: {
+          transform: 'translateY(0)',
+          opacity: 1,
+        },
+      },
+      modalFade: { from: { opacity: 0 }, to: { opacity: 1 } },
+    },
     tokens: defineTokens({
       /* we take a few things from the panda preset but for now we clear out some stuff.
        * This way we'll only add the things we need step by step and prevent using lots of differents things.