Refactoring: move all code files into a src directory

src/index.ts

@@ -0,0 +1,35 @@
+import DetermineLayout from "./Logic/DetermineLayout"
+import ThemeViewState from "./Models/ThemeViewState"
+import SvelteUIElement from "./UI/Base/SvelteUIElement"
+import ThemeViewGUI from "./UI/ThemeViewGUI.svelte"
+import { FixedUiElement } from "./UI/Base/FixedUiElement"
+import Combine from "./UI/Base/Combine"
+import { SubtleButton } from "./UI/Base/SubtleButton"
+import Svg from "./Svg"
+import { Utils } from "./Utils"
+
+// @ts-ignore
+try {
+    DetermineLayout.GetLayout()
+        .then((layout) => {
+            const state = new ThemeViewState(layout)
+            const main = new SvelteUIElement(ThemeViewGUI, { state })
+            main.AttachTo("maindiv")
+        })
+        .catch((err) => {
+            console.error("Error while initializing: ", err, err.stack)
+            new Combine([
+                new FixedUiElement(err).SetClass("block alert"),
+
+                new SubtleButton(Svg.download_svg(), "Download the raw file").onClick(() =>
+                    Utils.offerContentsAsDownloadableFile(
+                        DetermineLayout.getCustomDefinition(),
+                        "mapcomplete-theme.json",
+                        { mimetype: "application/json" }
+                    )
+                ),
+            ]).AttachTo("maindiv")
+        })
+} catch (err) {
+    new FixedUiElement(err).SetClass("block alert").AttachTo("maindiv")
+}