few cosmetic fixes

app/location/[id].jsx

@@ -1,6 +1,6 @@
 import { View, ScrollView, StyleSheet } from "react-native";
 import { useEffect } from "react";
-import { useTheme, Text, Card } from "react-native-paper";
+import {useTheme, Text, Card, ActivityIndicator} from "react-native-paper";
 import { useLocalSearchParams } from "expo-router";
 import useLocationStore from "@/locationStore";
 
@@ -19,14 +19,23 @@ export default function Location() {
     }
   }, [location, loading, fetchLocations]);
 
-  if (loading || !location) {
+  if (loading) {
     return (
-      <View style={styles.container}>
-        <Text style={styles.text}>Brak lokalizacji - {id}</Text>
-      </View>
+        <View style={[styles.container, {backgroundColor: theme.colors.background}]}>
+          <ActivityIndicator size="large" color={theme.colors.primary}/>
+        </View>
     );
   }
 
+  if (!location) {
+    return (
+        <View style={styles.container}>
+          <Text style={styles.text}>Brak lokalizacji - {id}</Text>
+        </View>
+    );
+  }
+
+
   return (
     <View style={[styles.container, {backgroundColor: theme.colors.background}]}>
       <ScrollView>