fix(styling): fix styling on documentation for lesson 8-h (#8990)

Author: Aymeric-Henry

documentation/tutorial/10-transitions/08-deferred-transitions/app-a/App.svelte

@@ -104,6 +104,7 @@
 	}
 
 	label {
+		display: block;
 		position: relative;
 		line-height: 1.2;
 		padding: 0.5em 2.5em 0.5em 2em;

documentation/tutorial/10-transitions/08-deferred-transitions/app-b/App.svelte

@@ -104,6 +104,7 @@
 	}
 
 	label {
+		display: block;
 		position: relative;
 		line-height: 1.2;
 		padding: 0.5em 2.5em 0.5em 2em;