fix(reader): restore emoji icons on reading theme optgroup labels

templates/reader.templ

@@ -189,7 +189,7 @@ templ ReaderSettingsPanel() {
 				<h3 class="font-semibold mb-2">Reading Theme</h3>
 				<label class="block mb-2">
 					<select name="reading_theme" x-model="readingTheme" @change="applyTheme()" class="w-full mt-1 px-3 py-2 rounded border">
-						<optgroup label="Classic Reading">
+						<optgroup label="📖 Classic Reading">
 							<option value="light">Light</option>
 							<option value="paper">Paper</option>
 							<option value="sepia">Sepia</option>
@@ -197,23 +197,23 @@ templ ReaderSettingsPanel() {
 							<option value="warm">Warm</option>
 							<option value="candlelight">Candlelight</option>
 						</optgroup>
-						<optgroup label="Sky and Atmosphere">
+						<optgroup label="🌤️ Sky & Atmosphere">
 							<option value="azure">Azure</option>
 							<option value="sky">Sky</option>
 							<option value="arctic">Arctic</option>
 							<option value="frost">Frost</option>
 						</optgroup>
-						<optgroup label="Sunset and Warmth">
+						<optgroup label="🌅 Sunset & Warmth">
 							<option value="dusk">Dusk</option>
 							<option value="sunset">Sunset</option>
 							<option value="twilight">Twilight</option>
 						</optgroup>
-						<optgroup label="Nature and Earth">
+						<optgroup label="🌲 Nature & Earth">
 							<option value="forest">Forest</option>
 							<option value="moss">Moss</option>
 							<option value="slate">Slate</option>
 						</optgroup>
-						<optgroup label="High Performance">
+						<optgroup label="⚡ High Performance">
 							<option value="oled">OLED</option>
 							<option value="solarized">Solarized</option>
 						</optgroup>