fix: reduce the z-index of splitter

Author: ACTCD

src/ext/extension-page/App.svelte

@@ -168,7 +168,7 @@
 		cursor: col-resize;
 		position: fixed;
 		inset: 0;
-		z-index: 200;
+		z-index: 20;
 	}
 
 	.splitter {
@@ -182,7 +182,7 @@
 		left: calc(var(--sidebar-fixed-width) - var(--splitter-offset));
 		width: var(--splitter-width);
 		height: 100svh;
-		z-index: 201;
+		z-index: 21;
 		transition: background-color 0.2s ease-in-out;
 
 		&:hover,

src/ext/extension-page/Components/Sidebar/Sidebar.svelte

@@ -228,7 +228,7 @@
 			title="Open settings"
 			{disabled}
 		/>
-		<Dropdown icon={iconPlus} title="New item" {disabled} right>
+		<Dropdown icon={iconPlus} title="New item" {disabled}>
 			<button on:click={() => newItem("js")}>New JS</button>
 			<button on:click={() => newItem("css")}>New CSS</button>
 			<button on:click={newRemote}>New Remote</button>