Fix printer IP text input keyboard type to allow multiple dots

src/screens/AdminScreen.tsx

@@ -579,7 +579,7 @@ export default function AdminScreen({ currentSettings, onSave, onClose }: AdminS
               placeholderTextColor={THEME.colors.textMuted}
               value={printerIp}
               onChangeText={setPrinterIp}
-              keyboardType="numeric"
+              keyboardType="numbers-and-punctuation"
             />
           </View>
           <View style={styles.inputGroup}>