add summer of making announcement and /slack redirect (#1537)

Author: transcental

next.config.mjs

@@ -15,7 +15,8 @@ const nextConfig = {
       'scrapbook.hackclub.com',
       'assets.hackclub.com',
       'v5.airtableusercontent.com',
-      'hcb.hackclub.com'
+      'hcb.hackclub.com',
+      "hc-cdn.hel1.your-objectstorage.com"
     ],
     remotePatterns: [
       {
@@ -69,6 +70,11 @@ const nextConfig = {
         permanent: true
       },
       { source: '/slack_invite/', destination: '/slack/', permanent: true },
+      {
+        source: '/slack/',
+        destination: 'https://summer.hackclub.com',
+        permanent: false
+      },
       {
         source: '/jobs/bank-tech-lead/',
         destination: '/jobs/lead-hacker/',

pages/index.js

@@ -204,6 +204,13 @@ function Page({
             priority
             gradient="linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.45))"
           />
+          <Announcement
+            width="90vw"
+            copy="This summer is yours for the making!"
+            caption="Get free Flipper Zeros, Framework Laptops, 3D Printers, and more. Join Summer of Making! Jun 16 - Aug 31."
+            href="https://summer.hackclub.com/"
+            imgSrc="https://hc-cdn.hel1.your-objectstorage.com/s/v3/779a5d748938b66ae93a566cc9699e636b01d462_summerlogo.png"
+          />
           <Box
             sx={{
               width: '90vw',