Add disabled prop to ButtonLink

Author: egeakman

src/components/button-link/button-link.astro

@@ -2,22 +2,24 @@
 import type React from 'react';
 
 export interface Props {
-  url: string;
+  url?: string;
   children: React.ReactNode;
+  disabled?: boolean;
   className?: string;
   secondary?: boolean;
   isExternal?: boolean;
 }
 
-const { url, className = "", secondary = false, isExternal } = Astro.props;
-const resolvedIsExternal = isExternal !== undefined ? isExternal : url.startsWith("http");
+const { url, className = "", secondary = false, disabled = false, isExternal} = Astro.props;
+const resolvedIsExternal = isExternal !== undefined ? isExternal : url?.startsWith("http");
 ---
 
 <a
   class={`font-bold text-lg px-4 py-4 bg-button rounded-[60px] inline-block leading-4 hover:bg-button-hover not-prose
     ${secondary ? "bg-primary text-white hover:bg-primary-hover" : "text-text-inverted"}
     ${secondary ? "text-text" : ""}
-    ${className || ""}`}
+    ${className || ""}
+    ${disabled ? "opacity-50 pointer-events-none" : ""}`}
   href={url}
 >
   <slot />

src/content/pages/programme/mentorship.mdx

@@ -27,7 +27,7 @@ mentee what their contribution should be (that's for the mentee to decide).
 ## Mentors
 
 <div class="text-center">
-    <Button>Signup closed</Button>
+    <ButtonLink disabled>Signup closed</ButtonLink>
 </div>
 
 We expect mentors to have past speaking experience at conferences similar to
@@ -48,7 +48,7 @@ You will also be invited to join the panel of the Webinar Workshops.
 ## Mentee
 
 <div class="text-center">
-    <Button>Signup closed</Button>
+    <ButtonLink disabled>Signup closed</ButtonLink>
 </div>
 
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