Fix picture-glance card icon styling for unavailable/unknown entities (#26352)

Author: Squazel

src/panels/lovelace/cards/hui-picture-glance-card.ts

@@ -30,7 +30,14 @@ import type {
 } from "./types";
 import type { PersonEntity } from "../../../data/person";
 
-const STATES_OFF = new Set(["closed", "locked", "not_home", "off"]);
+const STATES_OFF = new Set([
+  "closed",
+  "locked",
+  "not_home",
+  "off",
+  "unavailable",
+  "unknown",
+]);
 
 @customElement("hui-picture-glance-card")
 class HuiPictureGlanceCard extends LitElement implements LovelaceCard {