fix(ui): Adjust z-index and Twitter link in components

Correct Twitter link and add z-index to calendar month/year
selection grids to ensure proper overlay behavior

Author: isubroto

llms.txt

@@ -83,5 +83,5 @@ Chart (10 types), MCP Server, Drag & Drop Primitives.
 
 ## 🔗 Optional
 - **Community**: [Discord](https://discord.gg/saha-ui)
-- **Twitter/X**: [@saha_ui](https://twitter.com/saha-ui)
+- **Twitter/X**: [@saha_ui](https://twitter.com/saha_ui)
 - **Author**: [Saha UI Team](https://saha-ui.isubroto.com.bd)

src/components/Calendar/index.tsx

@@ -530,7 +530,7 @@ const Calendar = forwardRef<HTMLDivElement, CalendarProps>((props, ref) => {
     });
 
     return (
-      <div className="grid grid-cols-3 gap-2 p-4">
+      <div className="relative z-10 grid grid-cols-3 gap-2 p-4">
         {months.map((month, index) => (
           <button
             key={index}
@@ -556,7 +556,7 @@ const Calendar = forwardRef<HTMLDivElement, CalendarProps>((props, ref) => {
     const years = Array.from({ length: 12 }, (_, i) => currentYear - 5 + i);
 
     return (
-      <div className="grid grid-cols-3 gap-2 p-4">
+      <div className="relative z-10 grid grid-cols-3 gap-2 p-4">
         {years.map((year) => (
           <button
             key={year}