Set input method hints in typed input fields

Phone, e-mail, URL, username, code, date and amount fields now tell the
input method what they are for, so it can pick a suitable layout and skip
predictive text where it only gets in the way. One-time codes and secrets
are additionally marked with Qt::ImhSensitiveData.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Telegram/SourceFiles/boxes/passcode_box.cpp

@@ -311,6 +311,9 @@ void PasscodeBox::prepare() {
 	) | rpl::on_next([=] {
 		newChanged();
 	}, _passwordHint->lifetime());
+	_recoverEmail->setInputMethodHints(Qt::ImhEmailCharactersOnly
+		| Qt::ImhNoAutoUppercase
+		| Qt::ImhNoPredictiveText);
 	_recoverEmail->changes(
 	) | rpl::on_next([=] {
 		if (!_emailError.isEmpty()) {