fix: floating panel explicit top 0 (#2863)

* fix(floating-panel): set resize trigger `n`, `top: 0` explicitely

* chore(floating-panel): changeset

Author: Hugos68

.changeset/clean-adults-create.md

@@ -0,0 +1,5 @@
+---
+"@zag-js/floating-panel": patch
+---
+
+fix: floating panel, set resize trigger with `n` axis to `top: 0` explicitely

packages/machines/floating-panel/src/get-resize-axis-style.ts

@@ -7,6 +7,7 @@ export function getResizeAxisStyle(axis: ResizeTriggerAxis): JSX.CSSProperties {
       return {
         cursor: "n-resize",
         width: "100%",
+        top: 0,
         left: "50%",
         translate: "-50%",
       }