Add "submit a talk" to the top of the page (#2369)

I figured it'd be easier to find it. Ping @hasparus 

<img width="881" height="467" alt="Screenshot 2026-03-30 at 18 04 54"
src="https://github.com/user-attachments/assets/5852ac41-f034-435d-81e0-0a5217ad0786"
/>

Author: martinbonnin

src/app/day/2026/components/become-a-speaker.tsx

@@ -2,6 +2,14 @@ import { Button } from "@/app/conf/_design-system/button"
 
 const CFP_LINK = "https://forms.gle/M1kiuvwK2wLJyNzi9"
 
+export function CfpButton({ className }: { className?: string }) {
+  return (
+    <Button href={CFP_LINK} className={className}>
+      Submit a talk
+    </Button>
+  )
+}
+
 export function BecomeASpeakerSection({
   cfpDeadline,
 }: {
@@ -28,9 +36,7 @@ export function BecomeASpeakerSection({
         {cfpDeadline && (
           <p className="typography-body-lg">The CFP closes on {cfpDeadline}.</p>
         )}
-        <Button href={CFP_LINK} className="whitespace-nowrap md:w-fit">
-          Submit a talk
-        </Button>
+        <CfpButton className="whitespace-nowrap md:w-fit" />
       </div>
     </section>
   )

src/app/day/2026/melbourne/page.tsx

@@ -4,7 +4,10 @@ import { Button } from "@/app/conf/_design-system/button"
 import { Hero, HeroDateAndLocation } from "../components/hero"
 import { AboutSection } from "../components/about-section"
 import { WhyAttendSection } from "../components/why-attend-section"
-import { BecomeASpeakerSection } from "../components/become-a-speaker"
+import {
+  BecomeASpeakerSection,
+  CfpButton,
+} from "../components/become-a-speaker"
 import { EventPartnersSection } from "../components/event-partners"
 import { CtaCardSection } from "../components/cta-card-section"
 import { MarqueeRows } from "@/app/conf/2026/components/marquee-rows"
@@ -43,6 +46,7 @@ export default function MelbournePage() {
             <Button disabled className="whitespace-nowrap opacity-55 md:w-fit">
               Tickets coming soon
             </Button>
+            <CfpButton className="whitespace-nowrap md:w-fit" />
           </div>
         </Hero>
         <AboutSection />

src/app/day/2026/nyc/page.tsx

@@ -4,7 +4,10 @@ import { Button } from "@/app/conf/_design-system/button"
 import { Hero, HeroDateAndLocation } from "../components/hero"
 import { AboutSection } from "../components/about-section"
 import { WhyAttendSection } from "../components/why-attend-section"
-import { BecomeASpeakerSection } from "../components/become-a-speaker"
+import {
+  BecomeASpeakerSection,
+  CfpButton,
+} from "../components/become-a-speaker"
 import { EventPartnersSection } from "../components/event-partners"
 import { CtaCardSection } from "../components/cta-card-section"
 import { MarqueeRows } from "@/app/conf/2026/components/marquee-rows"
@@ -43,6 +46,7 @@ export default function NYCPage() {
             <Button disabled className="whitespace-nowrap opacity-55 md:w-fit">
               Tickets coming soon
             </Button>
+            <CfpButton className="whitespace-nowrap md:w-fit" />
           </div>
         </Hero>
         <AboutSection />

src/app/day/2026/paris/page.tsx

@@ -4,7 +4,10 @@ import { Button } from "@/app/conf/_design-system/button"
 import { Hero, HeroDateAndLocation } from "../components/hero"
 import { AboutSection } from "../components/about-section"
 import { WhyAttendSection } from "../components/why-attend-section"
-import { BecomeASpeakerSection } from "../components/become-a-speaker"
+import {
+  BecomeASpeakerSection,
+  CfpButton,
+} from "../components/become-a-speaker"
 import { EventPartnersSection } from "../components/event-partners"
 import { CtaCardSection } from "../components/cta-card-section"
 import { MarqueeRows } from "@/app/conf/2026/components/marquee-rows"
@@ -43,6 +46,7 @@ export default function ParisPage() {
             <Button disabled className="whitespace-nowrap opacity-55 md:w-fit">
               Tickets coming soon
             </Button>
+            <CfpButton className="whitespace-nowrap md:w-fit" />
           </div>
         </Hero>
         <AboutSection />

src/app/day/2026/singapore/page.tsx

@@ -4,7 +4,10 @@ import { Button } from "@/app/conf/_design-system/button"
 import { Hero, HeroDateAndLocation } from "../components/hero"
 import { AboutSection } from "../components/about-section"
 import { WhyAttendSection } from "../components/why-attend-section"
-import { BecomeASpeakerSection } from "../components/become-a-speaker"
+import {
+  BecomeASpeakerSection,
+  CfpButton,
+} from "../components/become-a-speaker"
 import { EventPartnersSection } from "../components/event-partners"
 import { CtaCardSection } from "../components/cta-card-section"
 import { MarqueeRows } from "@/app/conf/2026/components/marquee-rows"
@@ -46,6 +49,7 @@ export default function SingaporePage() {
             <Button href={TICKET_LINK} className="whitespace-nowrap md:w-fit">
               Get your ticket
             </Button>
+            <CfpButton className="whitespace-nowrap md:w-fit" />
           </div>
         </Hero>
         <AboutSection />