fix: renderer default size value and example usage

examples/tui.zig

@@ -127,12 +127,15 @@ pub fn main() !void {
             .err => |err| {
                 log.err("Received {any} with message: {s}", .{ err.err, err.msg });
             },
-            .view => |e| {
+            .view => |v| {
-                switch (e) {
+                switch (v) {
                     .tui => {
                         view = tui_view;
                         // NOTE: report potentially new screen size
-                        view.handle(.{ .resize = renderer.size });
+                        const events = try view.handle(.{ .resize = renderer.size });
+                        for (events.items) |e| {
+                            app.postEvent(e);
+                        }
                     },
                 }
             },

src/render.zig

@@ -19,7 +19,7 @@ pub fn Direct(comptime fullscreen: bool) type {
     _ = log;
     _ = fullscreen;
     return struct {
-        size: Size,
+        size: Size = undefined,
 
         pub fn resize(this: *@This(), size: Size) void {
             this.size = size;