chore: rename everything

src/routes/reg/ExpiredTip.tsx

@@ -28,7 +28,7 @@ export default function ExpiredTip() {
   return (
     <Styled>
       <div className="title">Magic link expired</div>
-      <p className="desc">Go back to your original Rustchat tab and request a new magic link.</p>
+      <p className="desc">Go back to your original VoceChat tab and request a new magic link.</p>
       <p className="desc">You can close this window now.</p>
     </Styled>
   );

src/routes/reg/Register.tsx

@@ -102,7 +102,7 @@ export default function Reg() {
     <>
       <div className="tips">
         <img src={`${BASE_URL}/resource/organization/logo`} alt="logo" className="logo" />
-        <h2 className="title">Sign Up to Rustchat</h2>
+        <h2 className="title">Sign Up to VoceChat</h2>
         <span className="desc">Please enter your details.</span>
       </div>