feat: new sharing system

feat: support legacy layout import

src/lib/components/ActionAutocomplete.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-  import {KEYMAP_CODES} from "$lib/serial/keymap-codes"
   import ActionListItem from "$lib/components/ActionListItem.svelte"
 
   export let exact: number | undefined = undefined

src/lib/components/Terminal.svelte

@@ -2,7 +2,7 @@
   import {serialLog, serialPort} from "$lib/serial/connection"
   import {slide} from "svelte/transition"
 
-  function submit(event: InputEvent) {
+  function submit(event: Event) {
     event.preventDefault()
     $serialPort.send(value.trim())
     value = ""

src/lib/components/layout/ActionSelector.svelte

@@ -23,7 +23,7 @@
     results = query ? index.search(searchInput.value) : defaultActions
   }
 
-  let customValue = undefined
+  let customValue: number | undefined = undefined
   const defaultActions: string[] = [
     charaActions,
     mouseActions,