add css style

libs/remix-ui/debugger-ui/src/lib/debugger-ui.tsx

@@ -274,7 +274,7 @@ export const DebuggerUI = (props: DebuggerUIProps) => {
       <div className="px-2">
         <div>
           <p className="my-2 debuggerLabel">Debugger Configuration</p>
-          <div className="mt-2 debuggerConfig custom-control custom-checkbox">
+          <div className="mt-2 mb-2 debuggerConfig custom-control custom-checkbox">
             <input className="custom-control-input" id="debugGeneratedSourcesInput" onChange={({ target: { checked } }) => {
               setState(prevState => {
                 return { ...prevState, opt: { debugWithGeneratedSources: checked } }