Fix various typos

Mainly fix typos in comments, but also some minor code changes:

* Rename `apply_on_poiner` to `apply_on_pointer`.
* Rename `ImeState::Commited` to `ImeState::Committed`
* Correct `cfg_attr` usage: `wayland_platfrom` -> `wayland_platform`.

examples/child_window.rs

@@ -64,7 +64,7 @@ fn main() -> Result<(), impl std::error::Error> {
                     // On x11, println when the cursor entered in a window even if the child window is created
                     // by some key inputs.
                     // the child windows are always placed at (0, 0) with size (200, 200) in the parent window,
-                    // so we also can see this log when we move the cursor arround (200, 200) in parent window.
+                    // so we also can see this log when we move the cursor around (200, 200) in parent window.
                     println!("cursor entered in the window {window_id:?}");
                 }
                 WindowEvent::KeyboardInput {

examples/control_flow.rs

@@ -70,7 +70,7 @@ fn main() -> Result<(), impl std::error::Error> {
                         },
                     ..
                 } => match key.as_ref() {
-                    // WARNING: Consider using `key_without_modifers()` if available on your platform.
+                    // WARNING: Consider using `key_without_modifiers()` if available on your platform.
                     // See the `key_binding` example
                     Key::Character("1") => {
                         mode = Mode::Wait;

examples/fullscreen.rs

@@ -66,7 +66,7 @@ fn main() -> Result<(), impl std::error::Error> {
                     ..
                 } => match key {
                     Key::Named(NamedKey::Escape) => elwt.exit(),
-                    // WARNING: Consider using `key_without_modifers()` if available on your platform.
+                    // WARNING: Consider using `key_without_modifiers()` if available on your platform.
                     // See the `key_binding` example
                     Key::Character(ch) => match ch.to_lowercase().as_str() {
                         "f" | "b" if window.fullscreen().is_some() => {

examples/handling_close.rs

@@ -51,7 +51,7 @@ fn main() -> Result<(), impl std::error::Error> {
                         },
                     ..
                 } => {
-                    // WARNING: Consider using `key_without_modifers()` if available on your platform.
+                    // WARNING: Consider using `key_without_modifiers()` if available on your platform.
                     // See the `key_binding` example
                     match key.as_ref() {
                         Key::Character("y") => {

examples/multithreaded.rs

@@ -78,7 +78,7 @@ fn main() -> Result<(), impl std::error::Error> {
                                 }
                                 println!("Picking video mode: {}", video_modes[video_mode_id]);
                             }
-                            // WARNING: Consider using `key_without_modifers()` if available on your platform.
+                            // WARNING: Consider using `key_without_modifiers()` if available on your platform.
                             // See the `key_binding` example
                             Key::Character(ch) => match ch.to_lowercase().as_str() {
                                 "1" => window.set_window_level(WindowLevel::AlwaysOnTop),

examples/window_debug.rs

@@ -27,7 +27,7 @@ fn main() -> Result<(), impl std::error::Error> {
     eprintln!("debugging keys:");
     eprintln!("  (E) Enter exclusive fullscreen");
     eprintln!("  (F) Toggle borderless fullscreen");
-    eprintln!("  (P) Toggle borderless fullscreen on system's preffered monitor");
+    eprintln!("  (P) Toggle borderless fullscreen on system's preferred monitor");
     eprintln!("  (M) Toggle minimized");
     eprintln!("  (Q) Quit event loop");
     eprintln!("  (V) Toggle visibility");
@@ -76,7 +76,7 @@ fn main() -> Result<(), impl std::error::Error> {
                         },
                     ..
                 } => match key_str.as_ref() {
-                    // WARNING: Consider using `key_without_modifers()` if available on your platform.
+                    // WARNING: Consider using `key_without_modifiers()` if available on your platform.
                     // See the `key_binding` example
                     "e" => {
                         fn area(size: PhysicalSize<u32>) -> u32 {