general: Change libadwaita include path

The libadwaita pkg-config adds `-I/usr/include/libadwaita-1`
(or similar) to the compiler flags, which means that

  #include <adwaita.h>

is sufficient, and the currently used

  #include <libadwaita-1/adwaita.h>

is not necessary.

Not only is it not necessary, but it prevents nautilus from being
built with an uninstalled libadwaita build (either meson subproject
or otherwise). To fix that, remove the `libadwaita-1/` prefix.

The libadwaita test programs also only `#include <adwaita.h>`, and
according to Debian Code Search, that is the more popular version.

https://codesearch.debian.net/search?q=%23include+%3Cadwaita.h%3E&literal=1
https://codesearch.debian.net/search?q=%23include+%3Clibadwaita-1%2Fadwaita.h%3E&literal=1

eel/eel-stock-dialogs.c

@@ -22,9 +22,9 @@
 #include <config.h>
 #include "eel-stock-dialogs.h"
 
+#include <adwaita.h>
 #include <glib/gi18n-lib.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #define TIMED_WAIT_STANDARD_DURATION 2000
 #define TIMED_WAIT_MIN_TIME_UP 3000

src/nautilus-app-chooser.c

@@ -6,7 +6,7 @@
 
 #include "nautilus-app-chooser.h"
 
-#include <libadwaita-1/adwaita.h>
+#include <adwaita.h>
 #include <glib/gi18n.h>
 
 #include <eel/eel-string.h>

src/nautilus-application.c

@@ -26,6 +26,7 @@
 
 #include "nautilus-application.h"
 
+#include <adwaita.h>
 #include <eel/eel-stock-dialogs.h>
 #include <fcntl.h>
 #include <gdk/gdk.h>
@@ -33,7 +34,6 @@
 #include <glib/gi18n.h>
 #include <glib/gstdio.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 #include <nautilus-extension.h>
 #include <sys/stat.h>
 #include <sys/types.h>

src/nautilus-autorun-software.c

@@ -22,12 +22,12 @@
 
 #include <config.h>
 
+#include <adwaita.h>
 #include <unistd.h>
 #include <string.h>
 #include <time.h>
 #include <errno.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 #include <gio/gio.h>
 
 #include <glib/gi18n.h>

src/nautilus-compress-dialog-controller.c

@@ -17,9 +17,9 @@
  *
  */
 
+#include <adwaita.h>
 #include <glib/gi18n.h>
 #include <gnome-autoar/gnome-autoar.h>
-#include <libadwaita-1/adwaita.h>
 
 #include <eel/eel-vfs-extensions.h>
 

src/nautilus-file-conflict-dialog.h

@@ -22,10 +22,10 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <glib-object.h>
 #include <gio/gio.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 G_BEGIN_DECLS
 

src/nautilus-file-operations.c

@@ -42,13 +42,13 @@
 #include <eel/eel-vfs-extensions.h>
 #include <eel/eel-string.h>
 
+#include <adwaita.h>
 #include <glib/gi18n.h>
 #include <glib/gstdio.h>
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>
 #include <glib.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-error-reporting.h"
 #include "nautilus-operations-ui-manager.h"

src/nautilus-history-controls.h

@@ -6,8 +6,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-window-slot.h"
 

src/nautilus-places-view.c

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <libadwaita-1/adwaita.h>
+#include <adwaita.h>
 
 #include "nautilus-mime-actions.h"
 #include "nautilus-places-view.h"

src/nautilus-preferences-window.c

@@ -25,9 +25,9 @@
 
 #include "nautilus-preferences-window.h"
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>
-#include <libadwaita-1/adwaita.h>
 
 #include <glib/gi18n.h>
 

src/nautilus-progress-indicator.h

@@ -6,8 +6,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-window-slot.h"
 

src/nautilus-properties-window.h

@@ -23,8 +23,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #define NAUTILUS_TYPE_PROPERTIES_WINDOW (nautilus_properties_window_get_type ())
 

src/nautilus-special-location-bar.h

@@ -18,9 +18,9 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>
-#include <libadwaita-1/adwaita.h>
 
 G_BEGIN_DECLS
 

src/nautilus-toolbar.h

@@ -23,8 +23,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-window-slot.h"
 

src/nautilus-ui-utilities.h

@@ -22,8 +22,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 void        nautilus_gmenu_set_from_model           (GMenu             *target_menu,
                                                      GMenuModel        *source_model);

src/nautilus-view-cell.h

@@ -6,7 +6,7 @@
 
 #pragma once
 
-#include <libadwaita-1/adwaita.h>
+#include <adwaita.h>
 
 #include "nautilus-types.h"
 #include "nautilus-view-item.h"

src/nautilus-view-controls.h

@@ -6,8 +6,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-window-slot.h"
 

src/nautilus-window.h

@@ -26,8 +26,8 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
-#include <libadwaita-1/adwaita.h>
 
 #include "nautilus-types.h"
 

src/nautilus-x-content-bar.h

@@ -22,9 +22,9 @@
 
 #pragma once
 
+#include <adwaita.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>
-#include <libadwaita-1/adwaita.h>
 
 G_BEGIN_DECLS