feat!: use error return for show proc for more uniform error handling

similar to e.g. the `script` proc and returns in the Go and V bindings

Author: ttytm

webui.odin

@@ -159,33 +159,32 @@ foreign webui {
 
 // == Wrapper functions =======================================================
 
+Error :: enum {
+	None,
+	Failed,
+}
 
 // Show a window using embedded HTML, or a file. If the window is already open, it will be refreshed.
-show :: proc(win: Window, content: string, await: bool = false, timeout: uint = 10) -> bool {
+show :: proc(win: Window, content: string, await: bool = false, timeout: uint = 10) -> Error {
 	res := webui_show(win, strings.unsafe_string_to_cstring(content))
 	if !await {
-		return res
+		return .Failed
 	}
 	for _ in 0 ..< timeout * 100 {
 		if is_shown(win) {
-			return true
+			return nil
 		}
 		// Slow down check interval to reduce load.
 		time.sleep(10 * time.Millisecond)
 	}
-	return false
+	return .Failed
 }
 
 // Navigate to a specific URL
 navigate :: proc(win: Window, url: string) {
 	webui_navigate(win, strings.unsafe_string_to_cstring(url))
 }
 
-Error :: enum {
-	None,
-	Failed,
-}
-
 // Run JavaScript without waiting for the response.
 run :: proc(win: Window, script: string) {
 	webui_run(win, strings.unsafe_string_to_cstring(script))