Work around efabrica-team/phpstan-latte#396 (it's an int but let's pretend it's a string)

Author: spaze

site/app/Admin/Presenters/templates/Pulse/passwordsStorages.latte

@@ -82,7 +82,7 @@
 	<tr n:if="$i != 0"><td></td><td><small><a href="#newdisclosure-{$i}"><span>add {$i + 1}. disclosure</span><span class="hidden">cancel adding</span></a></small></td></tr>
 	<tbody id="newdisclosure-{$i}" n:class="$i != 0 ? hidden">
 	{formContainer new}
-		{formContainer $i}
+		{formContainer "$i"}
 			<tr><th>{label disclosure /}</th><td>{input disclosure}</td></tr>
 			<tr><th>{label url /}</th><td>{input url}</td></tr>
 			<tr><th>{label archive /}</th><td>{input archive}</td></tr>

site/app/Admin/Presenters/templates/Talks/slides.latte

@@ -62,7 +62,7 @@
 	{/formContainer}
 	{formContainer new}
 		{for $i = 0; $i < $newCount; $i++}
-			{formContainer $i}
+			{formContainer "$i"}
 				<tbody class="new-slide changed">
 				<tr>
 					<th class="right">Číslo</th>