chore: Prepare for Rust edition bump to 2024 (without autofix) (#27791)

Successor to #27779 - in this PR I've applied changes manually, without
futzing with if let lifetimes at all.

Release Notes:

- N/A

crates/gpui/src/platform/linux/platform.rs

@@ -632,7 +632,7 @@ pub(super) fn get_xkb_compose_state(cx: &xkb::Context) -> Option<xkb::compose::S
 
 #[cfg(any(feature = "wayland", feature = "x11"))]
 pub(super) unsafe fn read_fd(mut fd: filedescriptor::FileDescriptor) -> Result<Vec<u8>> {
-    let mut file = File::from_raw_fd(fd.as_raw_fd());
+    let mut file = unsafe { File::from_raw_fd(fd.as_raw_fd()) };
     let mut buffer = Vec::new();
     file.read_to_end(&mut buffer)?;
     Ok(buffer)

crates/gpui/src/platform/linux/wayland/clipboard.rs

@@ -256,7 +256,7 @@ impl Clipboard {
                             }
                             Ok(n) => written += n,
                             Err(err) if err.kind() == ErrorKind::WouldBlock => {
-                                break Ok(PostAction::Continue)
+                                break Ok(PostAction::Continue);
                             }
                             Err(_) => break Ok(PostAction::Remove),
                         }

crates/gpui/src/platform/linux/x11/window.rs

@@ -186,12 +186,15 @@ fn find_visuals(xcb: &XCBConnection, screen_index: usize) -> VisualSet {
                 colormap: 0,
                 depth: depth_info.depth,
             };
-            log::debug!("Visual id: {}, class: {:?}, depth: {}, bits_per_value: {}, masks: 0x{:x} 0x{:x} 0x{:x}",
+            log::debug!(
+                "Visual id: {}, class: {:?}, depth: {}, bits_per_value: {}, masks: 0x{:x} 0x{:x} 0x{:x}",
                 visual_type.visual_id,
                 visual_type.class,
                 depth_info.depth,
                 visual_type.bits_per_rgb_value,
-                visual_type.red_mask, visual_type.green_mask, visual_type.blue_mask,
+                visual_type.red_mask,
+                visual_type.green_mask,
+                visual_type.blue_mask,
             );
 
             if (
@@ -409,15 +412,27 @@ impl X11WindowState {
 
         let mut bounds = params.bounds.to_device_pixels(scale_factor);
         if bounds.size.width.0 == 0 || bounds.size.height.0 == 0 {
-            log::warn!("Window bounds contain a zero value. height={}, width={}. Falling back to defaults.", bounds.size.height.0, bounds.size.width.0);
+            log::warn!(
+                "Window bounds contain a zero value. height={}, width={}. Falling back to defaults.",
+                bounds.size.height.0,
+                bounds.size.width.0
+            );
             bounds.size.width = 800.into();
             bounds.size.height = 600.into();
         }
 
         check_reply(
             || {
-                format!("X11 CreateWindow failed. depth: {}, x_window: {}, visual_set.root: {}, bounds.origin.x.0: {}, bounds.origin.y.0: {}, bounds.size.width.0: {}, bounds.size.height.0: {}",
-                                visual.depth, x_window, visual_set.root, bounds.origin.x.0 + 2, bounds.origin.y.0, bounds.size.width.0, bounds.size.height.0)
+                format!(
+                    "X11 CreateWindow failed. depth: {}, x_window: {}, visual_set.root: {}, bounds.origin.x.0: {}, bounds.origin.y.0: {}, bounds.size.width.0: {}, bounds.size.height.0: {}",
+                    visual.depth,
+                    x_window,
+                    visual_set.root,
+                    bounds.origin.x.0 + 2,
+                    bounds.origin.y.0,
+                    bounds.size.width.0,
+                    bounds.size.height.0
+                )
             },
             xcb.create_window(
                 visual.depth,