Refer to AU4 builds as "pre-alphas"

Author: kryksyh

src/pages/beta.astro

@@ -19,7 +19,7 @@ const { win, mac, lin } = betaReleases;
           <div class="my-6">
             <p>
               <strong>There currently is no beta release available.</strong> You
-              can download an alpha version instead.
+              can download an pre-alpha version instead.
             </p>
             <p class="my-2">
               If you'd like to help us with testing, instructions can be found
@@ -40,7 +40,7 @@ const { win, mac, lin } = betaReleases;
             </div>
           </div>
         </div>
-        <h2 class="mt-4">Audacity 4 alphas</h2>
+        <h2 class="mt-4">Audacity 4 pre-alphas</h2>
         <div class="flex gap-4">
           <div
             class="flex items-center justify-center w-fit rounded-md text-white my-6"
@@ -77,7 +77,7 @@ const { win, mac, lin } = betaReleases;
           </div>
         </div>
         <p>
-          <strong>Audacity 4 alpha versions are unfinished at this time.</strong
+          <strong>Audacity 4 pre-alpha versions are unfinished at this time.</strong
           > This means that some buttons may not do anything yet, or placeholder
           items be used. Things which work may go back to not working and back again
           – these builds are extremely unstable.