Fix: fix back-button on the 404-page, remove some obsolete classes

UI/Base/LeftIndex.ts

@@ -1,25 +0,0 @@
-import BaseUIElement from "../BaseUIElement"
-import Combine from "./Combine"
-import BackToIndex from "../BigComponents/BackToIndex"
-
-export default class LeftIndex extends Combine {
-    constructor(
-        leftContents: BaseUIElement[],
-        mainContent: BaseUIElement,
-        options?: {
-            hideBackButton: false | boolean
-        }
-    ) {
-        let back: BaseUIElement = undefined
-        if (options?.hideBackButton ?? true) {
-            back = new BackToIndex()
-        }
-        super([
-            new Combine([new Combine([back, ...leftContents]).SetClass("sticky top-4")]).SetClass(
-                "ml-4 block w-full md:w-2/6 lg:w-1/6"
-            ),
-            mainContent.SetClass("m-8 w-full mb-24"),
-        ])
-        this.SetClass("h-full block md:flex")
-    }
-}

UI/BigComponents/BackToIndex.ts

@@ -1,16 +0,0 @@
-import { SubtleButton } from "../Base/SubtleButton"
-import Svg from "../../Svg"
-import Translations from "../i18n/Translations"
-import BaseUIElement from "../BaseUIElement"
-
-export default class BackToIndex extends SubtleButton {
-    constructor(message?: string | BaseUIElement) {
-        super(
-            Svg.back_svg().SetStyle("height: 1.5rem;"),
-            message ?? Translations.t.general.backToMapcomplete,
-            {
-                url: "index.html",
-            }
-        )
-    }
-}

UI/NotFound.svelte

@@ -0,0 +1,14 @@
+<script>
+  import Tr from "./Base/Tr.svelte";
+  import Translations from "./i18n/Translations.ts";
+  import BackButton from "./Base/BackButton.svelte";
+  console.log("???")
+</script>
+<div class="flex flex-col">
+  <Tr t={Translations.t.general["404"]}></Tr>
+  <BackButton clss="m-8" on:click={() => {window.location = "index.html"}}>
+    <div class="flex w-full justify-center">
+    <Tr t={Translations.t.general.backToIndex}></Tr>
+    </div>
+  </BackButton>
+</div>