added basic getPings support by opening geo Uri

app/src-tauri/capabilities/default.json

···
 	"identifier": "default",
 	"description": "Capability for the main window",
 	"windows": ["main"],
-	"permissions": ["core:default", "opener:default", "store:default"]
+	"permissions": [
+		"core:default",
+		"opener:default",
+		"store:default",
+		{
+			"identifier": "opener:allow-open-url",
+			"allow": [
+				{
+					"url": "geo:*"
+				}
+			]
+		}
+	]
 }

app/src-tauri/src/lib.rs

···
 			Ok(())
 		})
 		.plugin(tauri_plugin_store::Builder::default().build())
+		.plugin(tauri_plugin_opener::init())
 		.invoke_handler(tauri::generate_handler![greet])
 		.run(tauri::generate_context!())
 		.expect("error while running tauri application");

app/src/home-page/home.ts

···
 import { goto } from "../utils/tools.ts";
 import { Store } from "../utils/store.ts";
 import * as api from "../utils/api.ts";
+import { openUrl } from "@tauri-apps/plugin-opener";
 
 Alpine.data("homePageState", () => ({
 	is_admin: false,
···
 		return "2m ago";
 	},
 
-	viewLocation(friend_id: string) {
-		alert(`Opening the location for the friend with id ${friend_id}`);
+	async viewLocation(friend_id: string) {
+		const pings = await api.getPings(friend_id);
+		await openUrl(`geo:0,0?q=${pings[0]}`);
 	},
 
 	friendOptions(friend_id: string) {
···
 		// temporarly, just use the friend id of the first in the list
 		const friends = await Store.get("friends");
 
-		await api.sendPings(friends[0].id, "3.14159N 3.14159W");
+		await api.sendPings(friends[0].id, "37.78918,-122.40335");
 	},
 
 	addFriend() {

app/src/utils/api.ts

···
 
 	const privKeyBytes = Uint8Array.fromBase64(privKey_b64);
 
-	const privKey = await crypto.subtle.importKey("pkcs8", privKeyBytes.buffer, "Ed25519", false, [
+	const privKey = await crypto.subtle.importKey("pkcs8", privKeyBytes, "Ed25519", false, [
 		"sign",
 	]);