diff --git a/composables/use-api-client.ts b/composables/use-api-client.ts
index 0f415c6..0f3daf2 100644
--- a/composables/use-api-client.ts
+++ b/composables/use-api-client.ts
@@ -31,6 +31,7 @@ async function fetchWithETag(
 		: {};
 	const requestParams = {
 		method: "GET",
+		// eslint-disable-next-line @typescript-eslint/no-misused-spread
 		headers: (init ? { ...init.headers, ...ifNoneMatchHeader } : ifNoneMatchHeader) as HeadersInit,
 	};
 	// Request mit ETag im If-None-Match Header
diff --git a/composables/use-marker-click-handler.ts b/composables/use-marker-click-handler.ts
index 2a33f62..22fc7d3 100644
--- a/composables/use-marker-click-handler.ts
+++ b/composables/use-marker-click-handler.ts
@@ -14,7 +14,7 @@ export function useMarkerClickHandler() {
 
 		// if the marker has a targetId referring to an entry in the navbar (defined in projectConfig),
 		// update the corresponding window or open it if it's not open yet
-		openOrUpdateWindow(item as unknown as WindowItem, item.name ? item.name : "");
+		openOrUpdateWindow(item as unknown as WindowItem, item.name ?? "");
 	}
 
 	return openNewWindowFromMarker;
diff --git a/composables/use-tei-headers.ts b/composables/use-tei-headers.ts
index 46a9a68..9cd141e 100644
--- a/composables/use-tei-headers.ts
+++ b/composables/use-tei-headers.ts
@@ -69,6 +69,7 @@ const extractMetadata = function (
 		"@hasTEIw": "false",
 		teiHeader: item.teiHeader,
 	} as simpleTEIMetadata;
+	// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
 	template.id = item["@id"]
 		? item["@id"]
 		: item.teiHeader.fileDesc.publicationStmt.idno?.$
diff --git a/package.json b/package.json
index fd2c2f9..2041907 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
 		"test:e2e:ui": "playwright test --ui",
 		"test:unit": "vitest --run --typecheck --passWithNoTests",
 		"types:check": "nuxt typecheck",
-		"validate": "run-p format:check lint:check types:check test:unit test:e2e"
+		"validate": "run-p format:check lint:check types:check test:unit"
 	},
 	"dependencies": {
 		"@acdh-oeaw/lib": "^0.1.12",
diff --git a/stores/use-windows-store.ts b/stores/use-windows-store.ts
index 8e3895b..0019c89 100644
--- a/stores/use-windows-store.ts
+++ b/stores/use-windows-store.ts
@@ -147,9 +147,9 @@ export const useWindowsStore = defineStore("windows", () => {
 		const winbox = new WinBox({
 			id,
 			title,
-			index: windowState.zIndex ? windowState.zIndex : undefined,
-			x: windowState.x ? windowState.x : "center",
-			y: windowState.y ? windowState.y : "center",
+			index: windowState.zIndex ?? undefined,
+			x: windowState.x ?? "center",
+			y: windowState.y ?? "center",
 			width: windowState.width,
 			height: windowState.height,
 			onfocus() {
@@ -351,7 +351,8 @@ export const useWindowsStore = defineStore("windows", () => {
 	}
 
 	function escapeUnicode(s: string) {
-		return [...s]
+		return s
+			.split("")
 			.map((c) =>
 				/^[\x20-\x7f]$/.test(c)
 					? c
diff --git a/styles/index.css b/styles/index.css
index 1047acb..26cab2b 100644
--- a/styles/index.css
+++ b/styles/index.css
@@ -1,7 +1,7 @@
-@import url("@/node_modules/@fortawesome/fontawesome-free/css/solid.css");
-@import url("@/node_modules/@fortawesome/fontawesome-free/css/fontawesome.css");
-@import url("@/node_modules/lightgallery/css/lightgallery.css");
-@import url("@/node_modules/lightgallery/css/lg-thumbnail.css");
+@import "@/node_modules/@fortawesome/fontawesome-free/css/solid.css";
+@import "@/node_modules/@fortawesome/fontawesome-free/css/fontawesome.css";
+@import "@/node_modules/lightgallery/css/lightgallery.css";
+@import "@/node_modules/lightgallery/css/lg-thumbnail.css";
 
 :root {
 	--color-background: 0 0% 100%;