feat: add Window::is_resizable (#2171)

* feat: add `Window::is_resizable`

* move it right after `set_resizable`

src/platform_impl/linux/mod.rs

@@ -366,6 +366,11 @@ impl Window {
         x11_or_wayland!(match self; Window(w) => w.set_resizable(resizable))
     }
 
+    #[inline]
+    pub fn is_resizable(&self) -> bool {
+        x11_or_wayland!(match self; Window(w) => w.is_resizable())
+    }
+
     #[inline]
     pub fn set_cursor_icon(&self, cursor: CursorIcon) {
         x11_or_wayland!(match self; Window(w) => w.set_cursor_icon(cursor))

src/platform_impl/linux/wayland/window/mod.rs

@@ -336,6 +336,11 @@ impl Window {
         self.send_request(WindowRequest::Resizeable(resizable));
     }
 
+    #[inline]
+    pub fn is_resizable(&self) -> bool {
+        true
+    }
+
     #[inline]
     pub fn scale_factor(&self) -> u32 {
         // The scale factor from `get_surface_scale_factor` is always greater than zero, so

src/platform_impl/linux/x11/window.rs

@@ -1211,6 +1211,11 @@ impl UnownedWindow {
         .expect("Failed to call `XSetWMNormalHints`");
     }
 
+    #[inline]
+    pub fn is_resizable(&self) -> bool {
+        true
+    }
+
     #[inline]
     pub fn xlib_display(&self) -> *mut c_void {
         self.xconn.display as _