fix(config): disable tiling for ws without layouts

This commit ensures that when a layout or a custom layout is not defined
for a workspace in the static configuration file, Workspace.tile will be
set to false. Thanks to M. Kichel on Discord for pointing out the need
for this!

komorebi/src/workspace.rs

@@ -104,11 +104,17 @@ impl Workspace {
 
         if let Some(layout) = &config.layout {
             self.layout = Layout::Default(*layout);
+            self.tile = true;
         }
 
         if let Some(pathbuf) = &config.custom_layout {
             let layout = CustomLayout::from_path_buf(pathbuf.clone())?;
             self.layout = Layout::Custom(layout);
+            self.tile = true;
+        }
+
+        if config.custom_layout.is_none() && config.layout.is_none() {
+            self.tile = false;
         }
 
         if let Some(layout_rules) = &config.layout_rules {