feat: mark entry file for repl

site/src/components/Repl/ReplWidget.svelte

@@ -56,6 +56,9 @@
 						return a.name < b.name ? -1 : 1;
 					});
 
+				// mark entry file
+				components.find(component => component.name === 'App').is_entry = true;
+
 				repl.set({ components });
 			});
 		} else if (example) {

site/src/routes/repl/[id]/index.svelte

@@ -74,6 +74,9 @@
 						return a.name < b.name ? -1 : 1;
 					});
 
+					// mark entry file
+					components.find(component => component.name === 'App').is_entry = true;
+
 					repl.set({ components });
 				});
 			} else {