Remove some event dispatchers

svelte/src/filesystem/viewers/Image.svelte

@@ -1,10 +1,8 @@
 <script lang="ts">
-import { createEventDispatcher } from "svelte";
 import { swipe_nav } from "lib/SwipeNavigate";
 import { fs_path_url } from "lib/FilesystemAPI.svelte";
 import type { FSNavigator } from "filesystem/FSNavigator";
-
-let dispatch = createEventDispatcher();
+import { loading_finish, loading_start } from "lib/Loading";
 
 let { nav }: {
 	nav: FSNavigator;
@@ -18,7 +16,7 @@ let swipe_prev = $state(true)
 let swipe_next = $state(true)
 
 export const update = async () => {
-	dispatch("loading", true)
+	loading_start()
 
 	// Figure out if there are previous or next files. If not then we disable
 	// swiping controls in that direction
@@ -32,7 +30,7 @@ export const update = async () => {
 	}
 }
 
-const on_load = () => dispatch("loading", false)
+const on_load = () => loading_finish()
 
 const mousedown = (e: MouseEvent) => {
 	if (!dragging && e.which === 1 && zoom) {