Add notification when saving cfg file

TrimSPelec.js

@@ -155,7 +155,12 @@ function firstLoad() {
 	let trimSPcfg=prep_cfg(0);
 	// Save file to filename
 	console.log('Save file to '+filename);
-	try { fs.writeFileSync(filename, trimSPcfg, 'utf-8'); }
+	try {
+	    fs.writeFileSync(filename, trimSPcfg, 'utf-8');
+	    if (typeof showTransientWarning === 'function') {
+		showTransientWarning('Saved configuration to ' + filename, document.getElementById('workPath'), 4000);
+	    }
+	}
 	catch(e) { alert('Failed to save the file !'); }
     });
     // Catch calls for plotProf

forge.config.js

@@ -41,6 +41,7 @@ module.exports = {
           description: 'TRIM.SP simulation GUI for ion implantation studies.',
           baseVersion: '24.08',
           runtimeVersion: '24.08',
+          extraFlatpakBuilderArgs: ['--state-dir=.flatpak-builder'],
           icon: {
             '16x16': 'appicons/icons/png/16x16.png',
             '24x24': 'appicons/icons/png/24x24.png',