feat: add option to disable the "Reloaded the configuration" notification (#8366)

Redo of #8085 since I can't push that branch.

src/apprt/gtk-ng/class/window.zig

@@ -961,7 +961,14 @@ pub const Window = extern struct {
         _: *gobject.ParamSpec,
         self: *Self,
     ) callconv(.c) void {
-        self.addToast(i18n._("Reloaded the configuration"));
+        const priv = self.private();
+        if (priv.config) |config_obj| {
+            const config = config_obj.get();
+            if (config.@"app-notifications".@"config-reload") {
+                self.addToast(i18n._("Reloaded the configuration"));
+            }
+        }
+
         self.syncAppearance();
     }
 

src/apprt/gtk/Window.zig

@@ -772,7 +772,9 @@ pub fn focusCurrentTab(self: *Window) void {
 }
 
 pub fn onConfigReloaded(self: *Window) void {
-    self.sendToast(i18n._("Reloaded the configuration"));
+    if (self.app.config.@"app-notifications".@"config-reload") {
+        self.sendToast(i18n._("Reloaded the configuration"));
+    }
 }
 
 pub fn sendToast(self: *Window, title: [*:0]const u8) void {

src/config/Config.zig

@@ -2499,6 +2499,8 @@ keybind: Keybinds = .{},
 ///
 ///   - `clipboard-copy` (default: true) - Show a notification when text is copied
 ///     to the clipboard.
+///   - `config-reload` (default: true) - Show a notification when
+///     the configuration is reloaded.
 ///
 /// To specify a notification to enable, specify the name of the notification.
 /// To specify a notification to disable, prefix the name with `no-`. For
@@ -7058,6 +7060,7 @@ pub const GtkTitlebarStyle = enum(c_int) {
 /// See app-notifications
 pub const AppNotifications = packed struct {
     @"clipboard-copy": bool = true,
+    @"config-reload": bool = true,
 };
 
 /// See bell-features