Update Drinks.css and index.astro for style adjustments and event details update

- Replaced `em` with `rem` in `.circle` dimensions for consistent scaling.
- Revised event descriptions and titles in `index.astro` for clarity.
- Updated `Menu.pdf` file.

src/styles/components/Drinks.css

@@ -81,8 +81,8 @@
 }
 
 .circle {
-  height: 20em;
-  width: 20em;
+  height: 20rem;
+  width: 20rem;
   border: 2px solid var(--color-accent-beige);
   border-radius: 50%;
   margin: 0.5rem;