Update CI dependencies and tidy tray_linux.c includes

Added 'xfce4-notifyd' and 'indicator-application' to CI dependencies for improved test coverage. Cleaned up and reordered standard includes in tray_linux.c for clarity. Minor comment capitalization fix in ci_linux_desktop.sh.

Author: ReenigneArcher

.github/workflows/ci.yml

@@ -70,6 +70,8 @@ jobs:
             xfce4 \
             xfce4-panel \
             xfce4-indicator-plugin \
+            xfce4-notifyd \
+            indicator-application \
             xfconf \
             xkb-data \
             imagemagick \

.github/workflows/ci_linux_desktop.sh

@@ -23,7 +23,7 @@ mkdir -p "${XDG_DATA_HOME}"
 chmod 700 "${XDG_DATA_HOME}"
 
 cleanup() {
-  # best effort cleanup
+  # Best-effort cleanup.
   kill "${WATCHER_PID:-}" "${PANEL_PID:-}" "${WM_PID:-}" >/dev/null 2>&1 || true
   chmod -R u+w "${XDG_DATA_HOME}" >/dev/null 2>&1 || true
 }

src/tray_linux.c

@@ -4,8 +4,10 @@
  */
 // standard includes
 #include <stdbool.h>
+#include <stdio.h>
 #include <stddef.h>
 #include <string.h>
+#include <unistd.h>
 
 // lib includes
 #ifdef TRAY_AYATANA_APPINDICATOR
@@ -18,9 +20,6 @@
 #endif
 #include <libnotify/notify.h>
 
-#include <stdio.h>
-#include <unistd.h>
-
 // Use a per-process AppIndicator id to avoid DBus collisions when tests create multiple
 // tray instances in the same desktop/session.
 static unsigned long tray_appindicator_seq = 0;