try to find the config file in various locations

main.js

@@ -1,6 +1,7 @@
 const { app, BrowserWindow } = require('electron/main');
 const path = require('node:path');
 const fs = require('fs');
+const os = require('os');
 const log = require('electron-log/main');
 
 
@@ -18,21 +19,48 @@ let win;
 
 /**
  * Loads a config file from disc.
- * The file is expected to be in the application path and called “config.json”.
- */
+ * The file is expected to be named `config.json` and is searched for in these
+ * locations and in this order:
+ * 
+ * 1. `/assets/presentation/config.json` (Tooloop OS)
+ * 2. Path of the executable  
+ *    - Linux: `app.getPath('exe')`  
+ *    - MacOS: `path.resolve(app.getPath('exe'), "../../../")`  
+ * 3. `__dirname` (Development)
+*/
 function loadConfig() {
-    try {
-        const data = fs.readFileSync(path.join(__dirname, "config.json"), { encoding: 'utf8' });
-        config = JSON.parse(data);
-    } catch (err) {
-        if (err.code == 'ENOENT') {
-            console.warn('No config file found at ' + path.join(__dirname, "config.json"));
-        } else {
-            console.error(err);
+    const locations = [
+        '/assets/data',
+        os.platform() == 'darwin' ?
+            path.resolve(app.getPath('exe'), "../../../") : app.getPath('exe'),
+        __dirname
+    ];
+
+    let filePath;
+
+    // Check all locations
+    for (let i = 0; i < locations.length; i++) {
+        // Update the filepath
+        filePath = path.join(locations[i], 'config.json');
+        try {
+            // Try access
+            fs.accessSync(filePath);
+
+            // Parse the file if found
+            console.info('Found config file at ' + filePath);
+            const data = fs.readFileSync(filePath, { encoding: 'utf8' });
+            config = JSON.parse(data);
+
+            // Break the loop if successful
+            return false;
+        } catch (err) {
+            console.warn('No config file found at ' + filePath);
         }
     }
+
 }
 
+
 /**
  * Creates the browser window
  */
@@ -55,7 +83,7 @@ async function createWindow() {
         win = null;
     });
 
-    win.webContents.addListener("willnavigate-", validateDomain);
+    win.webContents.addListener("will-navigate", validateDomain);
 
     win.once("ready-to-show", () => {
         win.setKiosk(true);