GrafanaUI: prevent ToolbarButton from submitting wrapping form (#102228)

fix(grafana-ui): prevent toolbar button from submitting wrapping form

packages/grafana-ui/src/components/ToolbarButton/ToolbarButton.tsx

@@ -86,6 +86,7 @@ export const ToolbarButton = forwardRef<HTMLButtonElement, ToolbarButtonProps>(
         className={buttonStyles}
         aria-label={getButtonAriaLabel(ariaLabel, tooltip)}
         aria-expanded={isOpen}
+        type="button"
         {...rest}
       >
         {renderIcon(icon, iconSize)}