fix(web): label the old launcher name as upstream on the install page

The install page spelled the old binary name on a line with no upstream
label, which fails the offline naming sweep. The launch note now leads
with voculinux and marks the old name as upstream on the same line.

web/src/app/install/page.tsx

@@ -12,6 +12,9 @@ const installDisplayCommand = `curl -fsSL \\
   -o /tmp/vl.sh && \\
 bash /tmp/vl.sh --interactive`;
 
+const codeClass =
+  "rounded bg-muted px-1.5 py-0.5 font-mono text-sm text-foreground";
+
 const distroGuides = [
   {
     name: "Ubuntu",
@@ -218,15 +221,11 @@ export default function InstallGuidesPage() {
         <h2 className="mb-4">After installation</h2>
         <ul className="space-y-3 text-muted-foreground">
           <li>
-            Launch with{" "}
-            <code className="rounded bg-muted px-1.5 py-0.5 font-mono text-sm text-foreground">
-              vocalinux
-            </code>{" "}
-            (the upstream binary; fork releases will use{" "}
-            <code className="rounded bg-muted px-1.5 py-0.5 font-mono text-sm text-foreground">
-              voculinux
-            </code>
-            ).
+            Launch with <code className={codeClass}>voculinux</code> once fork
+            releases are published. The install command above fetches the
+            upstream script, so today it puts{" "}
+            <code className={codeClass}>vocalinux</code> (upstream) on your PATH
+            instead.
           </li>
           <li>
             Hold Right Alt (Option) to dictate, or switch to toggle mode in