[chore] make template filenames clearer (#1878)

Author: ignatiusmb

.changeset/cyan-parents-enjoy.md

@@ -0,0 +1,5 @@
+---
+'create-svelte': patch
+---
+
+Simplify component file names

packages/create-svelte/templates/default/src/lib/Counter/index.svelte renamed to packages/create-svelte/templates/default/src/lib/Counter.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import Header from '$lib/Header/index.svelte';
+	import Header from '$lib/header/Header.svelte';
 	import '../app.css';
 </script>
 

packages/create-svelte/templates/default/src/lib/Header/index.svelte renamed to packages/create-svelte/templates/default/src/lib/header/Header.svelte

@@ -3,7 +3,7 @@
 </script>
 
 <script lang="ts">
-	import Counter from '$lib/Counter/index.svelte';
+	import Counter from '$lib/Counter.svelte';
 </script>
 
 <svelte:head>