Chore: update artwork and fix warnings

artwork

@@ -1 +1 @@
-Subproject commit f7ead83291e2f462888d73530f239ab3a48b4abd
+Subproject commit 13b39b2537350a24fe69a309e7f676a3c25f7bd0

src/routes/logo.rs

@@ -1,31 +1,9 @@
-use std::default;
-
 use axum::{extract::Query, routing::get, Router};
 use cairo::{Context, Format, ImageSurface};
 use rust_embed::RustEmbed;
-use serde::{de, Deserialize};
+use serde::Deserialize;
 
-use crate::{color::Color, polygon, SharedState};
-
-fn default_as_false() -> bool {
-    false
-}
-
-fn deserialize_bool<'de, D>(deserializer: D) -> Result<bool, D::Error>
-where
-    D: de::Deserializer<'de>,
-{
-    let s: &str = de::Deserialize::deserialize(deserializer)?;
-
-    match s {
-        "true" | "on" => Ok(true),
-        "false" | "off" => Ok(false),
-        _ => Err(de::Error::unknown_variant(
-            s,
-            &["true", "on", "false", "off"],
-        )),
-    }
-}
+use crate::{polygon, SharedState};
 
 #[derive(Deserialize, Default)]
 #[allow(non_camel_case_types)]