Fix spelling behaviour->behavior (#4298)

Author: SollyBunny

src/app/application_ipc.cpp

@@ -231,7 +231,7 @@ void Application::initIpc() {
   });
 
   m_ipcService.bind(noctalia::cli::msg::notificationInvokeLatest, [this](const std::string&) -> std::string {
-    // Mirror the toast left-click behaviour for the most recent active notification:
+    // Mirror the toast left-click behavior for the most recent active notification:
     // invoke its "default" action so the source application raises/focuses its window.
     // all() stores notifications oldest-first (push_back), so iterate in reverse for newest.
     const auto& notifications = m_notificationManager.all();

src/shell/panel/plugin_panel.h

@@ -77,7 +77,7 @@ class PluginPanel : public Panel, public scripting::PluginIpcEndpoint {
   [[nodiscard]] bool dismissTransientUi() override;
 
   // Delivers a manifest-declared capture_keys chord to the script's onKey(chord, pressed) and
-  // reports it consumed. Declared chords only: everything else keeps its host behaviour, and a
+  // reports it consumed. Declared chords only: everything else keeps its host behavior, and a
   // focused text input still wins printable keys (PanelManager reserves those before calling).
   [[nodiscard]] bool handleGlobalKey(std::uint32_t sym, std::uint32_t modifiers, bool pressed, bool preedit) override;
 

src/system/system_monitor_service.cpp

@@ -1278,7 +1278,7 @@ void SystemMonitorService::samplingLoop() {
     const bool historyEnabled = historyPollSeconds > 0.0F;
     // Per-core is opt-in via retainCpuCores() and runs on a fixed 1s cadence, deliberately
     // independent of cpu_poll_seconds (default 2s): consumers want per-second resolution, and
-    // pinning it here leaves aggregate CPU behaviour untouched whatever the user configures.
+    // pinning it here leaves aggregate CPU behavior untouched whatever the user configures.
     const bool cpuCoresEnabled = m_cpuCoreRefs.load(std::memory_order_relaxed) > 0;
     // Resuming after a pause: the previous sample predates the gap, so a delta against it would
     // cover the whole pause rather than one second. Drop it and seed afresh.

src/ui/controls/context_menu_popup.h

@@ -51,7 +51,7 @@ struct ContextMenuPopupRequest {
   // pointer capture (scrollbar thumb drags leaving the popup). Defaults to parent.wlSurface.
   wl_surface* pointerParentSurface = nullptr;
   // Serial of the input event that requested this popup. When absent, legacy
-  // callers retain the previous last-input-serial behaviour.
+  // callers retain the previous last-input-serial behavior.
   std::optional<std::uint32_t> inputSerial = std::nullopt;
   std::optional<ContextMenuPopupPlacement> placement = std::nullopt;
 };

tests/ical_parser_test.cpp

@@ -494,7 +494,7 @@ int main() {
   // All-day (VALUE=DATE) MONTHLY on the 1st, over a one-year window, is exactly 12 - one per month.
   // The old code derived the day-of-month from floor<days> of the UTC instant, which for a zone east
   // of UTC rolls back to the previous civil day (the 31st of Dec), so months without a 31st were
-  // dropped. Correct behaviour is zone-independent. Window is padded ±half-month so each local-midnight
+  // dropped. Correct behavior is zone-independent. Window is padded ±half-month so each local-midnight
   // occurrence lands inside regardless of the running zone's UTC offset.
   {
     const std::string ics = "BEGIN:VEVENT\r\nUID:ad\r\nSUMMARY:s\r\nDTSTART;VALUE=DATE:20240101\r\n"

tests/ui_tree_reconciler_test.cpp

@@ -2316,7 +2316,7 @@ int main() {
   }
 
   // Graph: no pointer callback declared -> plain Graph, no InputArea wrapper
-  // (existing values/size behaviour is unaffected by the new capability).
+  // (existing values/size behavior is unaffected by the new capability).
   {
     ui::UiTreeReconciler reconciler;
     Flex host;

tests/widget_definition_test.cpp

@@ -46,7 +46,7 @@
 #include <string_view>
 
 // The battery definition's finalize hook reaches into the warning-threshold helper, which would drag
-// UPower, notifications and i18n into a test about definition well-formedness. Threshold behaviour is
+// UPower, notifications and i18n into a test about definition well-formedness. Threshold behavior is
 // not under test here, so stand the helper in rather than link that tree.
 int batteryWarningThresholdForSelector(
     const BatteryConfig& /*config*/, const UPowerService* /*upower*/, std::string_view /*selector*/