Fix icon in timings

patches/server/Timings-v2.patch

@@ -2025,7 +2025,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          this.value = value;
      }
 +
-+    public String getData() { return "data:image/png;base64," + new String(java.util.Base64.getEncoder().encode(value), java.nio.charset.StandardCharsets.UTF_8); } // Paper
++    public String getData() {
++        if (value == null) {
++            return null;
++        }
++        return "data:image/png;base64," + new String(java.util.Base64.getEncoder().encode(value), java.nio.charset.StandardCharsets.UTF_8);
++    } // Paper
  }
 diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644