chore(www): update Partner Day venue address and schedule (#50587)

## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

Content update to the `/go/select-2026/partner-day` landing page.

## What is the current behavior?

The Details section lists the location as "San Francisco, CA" with a
"Venue details will be shared soon" placeholder, and the schedule only
lists doors and happy hour times.

## What is the new behavior?

- Location now shows the confirmed venue address: 580 20th St, San
Francisco, CA (placeholder line removed)
- Schedule now includes the program time: doors at 2:30 PM, program from
3:00 to 4:30 PM, happy hour from 4:30 PM

## Additional context

Verified locally on the www dev server.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Documentation**
* Updated the Partner Day landing page with the full venue address in
San Francisco.
* Added event timing details: doors open at 2:30 PM, with the program
running from 3:00–4:30 PM.


<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/www/_go/events/select-2026/partner-day.tsx

@@ -65,12 +65,10 @@ const page: GoPageInput = {
             The day before Supabase Select 2026
           </p>
           <p className="mt-4 text-lg font-medium text-foreground">Location</p>
-          <p>San Francisco, CA</p>
-          <p className="text-sm text-foreground-lighter italic">
-            Venue details will be shared soon
-          </p>
+          <p>580 20th St, San Francisco, CA</p>
           <p className="mt-4 text-lg font-medium text-foreground">Time</p>
           <p>Doors open at 2:30 PM</p>
+          <p>Program runs from 3:00 to 4:30 PM</p>
           <p>Happy hour from 4:30 PM</p>
         </div>
       ),