Prepare 1.0.0: fix memory leaks, use-after-free bugs, and code quality issues

- Version 6.0.0 → 1.0.0, C standard gnu17 → gnu23
- Fix desktop file path (was referencing parent directory)
- global_shortcuts.c: fix systematic GVariant/GDBusProxy leaks, guint64-to-gchar*
  type mismatch, buffer overflow risk, missing malloc NULL checks, debug artifacts
- gsr-window.c: fix notification timeout use-after-free, menu object leak in
  finalize, localtime NULL check, extract active_mode_to_string helper
- gsr-stream-page.c, gsr-record-page.c, gsr-replay-page.c: fix timer source
  leak in finalize (use-after-free if destroyed while timer running)
- gsr-shortcut-accel-dialog.c: fix Pango markup injection via shortcut titles
- gsr-info.c: fix pclose UB, replace fprintf with g_warning
- gsr-config.c: include errno in fopen failure warning
- Remove unused include, stale Phase 5 comments

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gsr-info.c b/src/gsr-info.c
index 04da95c..4187aed 100644
--- a/src/gsr-info.c
+++ b/src/gsr-info.c
@@ -32,7 +32,7 @@ read_command_output(const char *cmd, int *exit_code)
 
     int status = pclose(f);
     if (exit_code) {
-        if (WIFEXITED(status))
+        if (status >= 0 && WIFEXITED(status))
             *exit_code = WEXITSTATUS(status);
         else
             *exit_code = -1;
@@ -223,7 +223,7 @@ gsr_info_load(GsrInfo *info)
     int exit_code = -1;
     char *output = read_command_output("gpu-screen-recorder --info", &exit_code);
     if (!output) {
-        fprintf(stderr, "error: 'gpu-screen-recorder --info' failed to run\n");
+        g_warning("'gpu-screen-recorder --info' failed to run");
         return GSR_INFO_EXIT_FAILED_TO_RUN;
     }