fix(android): increase login form button spacing, shrink passkey text

- forgot password link: mt-3 → mt-4
- passkey button: mt-3 → mt-4, added text-xs to prevent overflow
- create account: mt-4 → mt-5

web/src/components/LoginForm.tsx

@@ -117,7 +117,7 @@ export function LoginForm() {
           </button>
         </form>
         {!isRegister && (
-          <div className="mt-3 text-center">
+          <div className="mt-4 text-center">
             <Link
               to="/forgot-password"
               className="text-gb-yellow hover:text-gb-orange text-xs"
@@ -127,7 +127,7 @@ export function LoginForm() {
           </div>
         )}
         {!isRegister && (
-          <div className="mt-3">
+          <div className="mt-4">
             <button
               type="button"
               onClick={async () => {
@@ -157,13 +157,13 @@ export function LoginForm() {
                   console.error("Passkey login failed:", err);
                 }
               }}
-              className="terminal-button w-full border-gb-aqua text-gb-aqua"
+              className="terminal-button w-full border-gb-aqua text-gb-aqua text-xs"
             >
               [SIGN IN WITH PASSKEY]
             </button>
           </div>
         )}
-        <div className="mt-4 text-center">
+        <div className="mt-5 text-center">
           <button
             type="button"
             onClick={() => {