Replace log with tracing

Tracing is a modern replacement for the log crate that allows for
annotating log messages with the function that they come from.

Signed-off-by: John Nunley <dev@notgull.net>
Closes: #3482

src/platform_impl/linux/x11/util/input.rs

@@ -45,7 +45,7 @@ impl XConnection {
             self.flush_requests()?;
             Ok(true)
         } else {
-            log::error!("Could not select XKB events: The XKB extension is not initialized!");
+            tracing::error!("Could not select XKB events: The XKB extension is not initialized!");
             Ok(false)
         }
     }