fix(core): verify default terminal is valid for current os

Logic was throwing errors since default terminal was set to ‘terminal’ (MacOS terminal).

Author: sebastianhuus

apps/desktop/src/components/profileSettings/GeneralSettings.svelte

@@ -98,6 +98,20 @@
 		value: option.identifier
 	}));
 
+	// Ensure the default terminal is valid for the current platform
+	$effect(() => {
+		const currentTerminal = $userSettings.defaultTerminal;
+		const isValidForPlatform = terminalOptions.some(
+			(t) => t.identifier === currentTerminal.identifier
+		);
+		if (!isValidForPlatform && terminalOptions.length > 0) {
+			const firstValidTerminal = terminalOptions[0];
+			if (firstValidTerminal) {
+				userSettings.update((s) => ({ ...s, defaultTerminal: firstValidTerminal }));
+			}
+		}
+	});
+
 	$effect(() => {
 		if ($user && !loaded) {
 			loaded = true;