Open links in new tab, remove unneeded deps

src/components/app-sidebar.tsx

@@ -1,14 +1,10 @@
 import * as React from "react"
 import {
-  BookOpen,
   Bot,
   Command,
   Frame,
-  LifeBuoy,
   Map,
   PieChart,
-  Send,
-  Settings2,
   SquareTerminal,
 } from "lucide-react"
 

src/components/nav-secondary.tsx

@@ -27,7 +27,7 @@ export function NavSecondary({
           {items.map((item) => (
             <SidebarMenuItem key={item.title}>
               <SidebarMenuButton asChild size="sm">
-                <a href={item.url}>
+                <a href={item.url} target="blank">
                   <item.icon />
                   <Icon icon={item.icon} height="16px"/>
                   <span>{item.title}</span>