Fix tilepicker being too wide by default

In egui 0.24, the scrollbars no longer take up any space by default and
only appear when you hover over where the scrollbar is supposed to be.
So since Astrabit-ST#75, the tilepicker width was incorrectly
including the width of the scrollbar in the width calculation, making
the tilepicker too wide. This removes the width of the scrollbar from
the tilepicker width formula so that the tilepicker default width and
maximum width are calculated correctly.

crates/ui/src/tabs/map/mod.rs

@@ -286,11 +286,7 @@ impl luminol_core::Tab for Tab {
 
         // Display the tilepicker.
         let spacing = ui.spacing();
-        let tilepicker_default_width = 256.
-            + spacing.indent
-            + spacing.scroll.bar_inner_margin
-            + spacing.scroll.bar_width
-            + spacing.scroll.bar_outer_margin;
+        let tilepicker_default_width = 256. + spacing.indent;
         egui::SidePanel::left(format!("map_{}_tilepicker", self.id))
             .default_width(tilepicker_default_width)
             .max_width(tilepicker_default_width)