refactor(nuxt): update body styles in app.vue

app.vue

@@ -42,30 +42,7 @@
 	</nuxt-error-boundary>
 </template>
 <style>
-	body[data-theme="dark"],
-	body[data-theme="dark"] .alayhead {
-		background-color: #141414;
-		color: #fff;
-	}
-
-	html {
-		background: #f5f5f5;
-	}
-
-	html,
 	body {
-		height: 100%;
+		margin: 0 !important;
-	}
-
-	html:has(body[data-theme="dark"]) {
-		background-color: #141414 !important;
-	}
-
-	body {
-		margin: 0px !important;
-	}
-
-	body:not([data-theme="dark"]) .alayhead {
-		background-color: #f5f5f5 !important;
 	}
 </style>