Fix basic eslint errors

styles/src/styleTree/search.ts

@@ -3,8 +3,8 @@ import { withOpacity } from "../theme/color"
 import { background, border, foreground, text } from "./components"
 import { interactive, toggleable } from "../element"
 
-export default function search(colorScheme: ColorScheme) {
-    let layer = colorScheme.highest
+export default function search(colorScheme: ColorScheme): unknown {
+    const layer = colorScheme.highest
 
     // Search input
     const editor = {

styles/src/styleTree/welcome.ts

@@ -11,9 +11,9 @@ import {
 import { interactive } from "../element"
 
 export default function welcome(colorScheme: ColorScheme) {
-    let layer = colorScheme.highest
+    const layer = colorScheme.highest
 
-    let checkboxBase = {
+    const checkboxBase = {
         cornerRadius: 4,
         padding: {
             left: 3,
@@ -30,7 +30,7 @@ export default function welcome(colorScheme: ColorScheme) {
         },
     }
 
-    let interactive_text_size: TextProperties = { size: "sm" }
+    const interactive_text_size: TextProperties = { size: "sm" }
 
     return {
         pageWidth: 320,