apprt/glfw: inherit working dir

src/apprt/glfw.zig

@@ -346,10 +346,25 @@ pub const Surface = struct {
         try app.app.addSurface(self);
         errdefer app.app.deleteSurface(self);
 
+        // Our parent pwd will be tracked here
+        const alloc = app.app.alloc;
+        var parent_pwd: ?[]const u8 = null;
+        defer if (parent_pwd) |v| alloc.free(v);
+
+        // Shallow copy the config so that we can modify it.
+        var config = app.config;
+
+        // Get our previously focused surface
+        const parent = app.app.focusedSurface();
+        if (parent) |p| {
+            parent_pwd = try p.pwd(alloc);
+            if (parent_pwd) |v| config.@"working-directory" = v;
+        }
+
         // Initialize our surface now that we have the stable pointer.
         try self.core_surface.init(
-            app.app.alloc,
-            &app.config,
+            alloc,
+            &config,
             .{ .rt_app = app, .mailbox = &app.app.mailbox },
             self,
         );