Make DecorationManager a toplevel struct

src/decoration.zig

@@ -1,7 +1,7 @@
 const std = @import("std");
 const c = @import("c.zig");
 
-const DecorationManager = @import("decoration_manager.zig").DecorationManager;
+const DecorationManager = @import("decoration_manager.zig");
 
 // TODO: this needs to listen for destroy and free nodes from the deco list
 pub const Decoration = struct {

src/decoration_manager.zig

@@ -1,12 +1,12 @@
+const Self = @This();
+
 const std = @import("std");
+
 const c = @import("c.zig");
 
 const Decoration = @import("decoration.zig").Decoration;
 const Server = @import("server.zig");
 
-pub const DecorationManager = struct {
-    const Self = @This();
-
 server: *Server,
 
 wlr_xdg_decoration_manager: *c.wlr_xdg_decoration_manager_v1,
@@ -38,4 +38,3 @@ pub const DecorationManager = struct {
     node.data.init(self, wlr_xdg_toplevel_decoration);
     self.decorations.prepend(node);
 }
-};

src/server.zig

@@ -5,7 +5,7 @@ const std = @import("std");
 const c = @import("c.zig");
 
 const Config = @import("config.zig").Config;
-const DecorationManager = @import("decoration_manager.zig").DecorationManager;
+const DecorationManager = @import("decoration_manager.zig");
 const InputManager = @import("input_manager.zig").InputManager;
 const Log = @import("log.zig").Log;
 const Output = @import("output.zig").Output;