chore: Replace urls with saved images

Signed-off-by: SindreKjelsrud <sindre@kjelsrud.dev>

app/index.tsx

@@ -3,18 +3,10 @@ import { ImageBackground, Text, TouchableOpacity, View } from "react-native";
 import { styles } from "./styles";
 
 // Placeholder images
-const netherImage = {
+const netherImage = require("../assets/images/netherportalcalculator.png");
-  uri: "https://s1.qwant.com/thumbr/474x248/2/4/a24db6c90af628d74cc6f90c2a9c710035c23f71bbe60306da8c15048e3f0a/OIP.joos3K71NDyUnFa8KyqxmwHaD4.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.joos3K71NDyUnFa8KyqxmwHaD4%3Fpid%3DApi&q=0&b=1&p=0&a=0",
+const todoImage = require("../assets/images/todo-list.png");
-};
+const coordinatesImage = require("../assets/images/coordinates.png");
-const todoImage = {
+const motdImage = require("../assets/images/motd-creator.png");
-  uri: "https://s1.qwant.com/thumbr/474x266/9/3/2f1096a5a780b8a5170c7f33984b1862d42724cdb70096f40df193dd4b8f76/OIP.KbL45cxF3QbBxlw-0fl2mQHaEK.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.KbL45cxF3QbBxlw-0fl2mQHaEK%3Fpid%3DApi&q=0&b=1&p=0&a=0",
-};
-const coordinatesImage = {
-  uri: "https://s1.qwant.com/thumbr/474x355/a/9/00d5edea1b711b9e35c9635bcbfcd537e3a40e81f9387482244c0bcd0daea2/OIP.ZkcHYuA3X2kzJCVpLk9rHQHaFj.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.ZkcHYuA3X2kzJCVpLk9rHQHaFj%3Fpid%3DApi&q=0&b=1&p=0&a=0",
-};
-const motdImage = {
-  uri: "https://s1.qwant.com/thumbr/474x270/3/6/a8f9c3fe42ffaf1d234f19d7f669586eec59661cd788a047e5d9c4db3b7e6b/OIP.MSaLxXZ2qYeCextEVZckJgHaEO.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.MSaLxXZ2qYeCextEVZckJgHaEO%3Fpid%3DApi&q=0&b=1&p=0&a=0",
-};
 
 export default function Index() {
   return (