core/desktopentry: sort fallback entries for terminal resolution my id

Author: RGBCube

src/core/desktopentry.cpp

@@ -837,7 +837,11 @@ void DesktopEntryManager::onScanCompleted(const QList<ParsedDesktopEntryData>& s
 		}
 
 		// Fallback phase: remaining TerminalEmulator entries.
-		for (auto* entry: this->desktopEntries.values()) {
+		// XXX: Spec says fallback entry order is undefined, but we sort by ID
+		// for deterministic behavior.
+		auto fallbackEntries = this->desktopEntries.values();
+		std::ranges::sort(fallbackEntries, {}, &DesktopEntry::mId);
+		for (auto* entry: fallbackEntries) {
 			if (addedIds.contains(entry->mId)) continue;
 			if (!isValidTerminal(entry)) continue;
 			if (excludedIds.contains(entry->mId) && !protectedIds.contains(entry->mId)) continue;