[fix] better icons for file actions

Author: dummdidumm

src/routes/tutorial/[slug]/File.svelte

@@ -177,7 +177,7 @@
 	}
 
 	.rename {
-		background-image: url(./file-edit.svg);
+		background-image: url(./rename.svg);
 	}
 
 	.delete {

src/routes/tutorial/[slug]/Folder.svelte

@@ -285,11 +285,11 @@
 	}
 
 	.rename {
-		background-image: url(./file-edit.svg);
+		background-image: url(./rename.svg);
 	}
 
 	.file-new {
-		background-image: url(./plus.svg);
+		background-image: url(./file-new.svg);
 	}
 
 	.folder-new {