Fix gr.NativePlot sorting of labels as default behaviour (#10953)

* Fix #10764: Automatic sorting of labels in plots

Originally, the bug appeared to be isolated to
gr.BarPlot, but it turns out that it affects all
gr.NativePlot components, including BarPlot,
LinePlot, and ScatterPlot.

Although the data does not seem sorted in the
program's flow, it gets sorted when the Svelte
file is rendered. This issue occurs because the
reformat_sort function in index.svelte of
NativePlot returns undefined when sort is not
specified, which, during compilation, is treated
as void 0. This implicitly triggers default
sorting. To resolve this, I changed undefined to
null, ensuring that the compiled code handles it
as null, resulting in unsorted data being
displayed in the browser.

* add changeset

---------

Co-authored-by: gradio-pr-bot <[email protected]>

Author: Rafalex04

.changeset/funny-cows-draw.md

@@ -0,0 +1,6 @@
+---
+"@gradio/nativeplot": patch
+"gradio": patch
+---
+
+fix:Fix gr.NativePlot sorting of labels as default behaviour

js/nativeplot/Index.svelte

@@ -56,6 +56,7 @@
 		| "descending"
 		| { field: string; order: "ascending" | "descending" }
 		| string[]
+		| null
 		| undefined {
 		if (_sort === "x") {
 			return "ascending";
@@ -66,7 +67,7 @@
 		} else if (_sort === "-y") {
 			return { field: y, order: "descending" };
 		} else if (_sort === null) {
-			return undefined;
+			return null;
 		} else if (Array.isArray(_sort)) {
 			return _sort;
 		}