Fix recurring event positioning by removing CSS positioning conflict

- Remove conflicting `position: relative` CSS rule for .week-event
- This was causing `top: XXXpx` values to be applied as relative offsets
  instead of absolute positioning from container top
- Recurring events now position correctly at their calculated times
- Both regular and recurring events display at proper grid positions

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

styles.css

@@ -759,9 +759,7 @@ body {
 }
 
 /* Event resize zones and handles */
-.week-event {
-    position: relative;
-}
+/* Remove position: relative to allow absolute positioning for correct event placement */
 
 .week-event .event-content {
     padding: 2px;