chore: fix the capitalization of 3 characters to make sure they match. :)

src/pages/VisProgPage/VisProg.tsx

@@ -119,7 +119,7 @@ const VisProgUI = () => {
             <SaveLoadPanel></SaveLoadPanel>
           </Panel>
         <Panel position="bottom-center">
-          <button onClick={() => undo()}>undo</button>
+          <button onClick={() => undo()}>Undo</button>
           <button onClick={() => redo()}>Redo</button>
         </Panel>
         <Controls/>
@@ -189,7 +189,7 @@ function VisProgPage() {
   return (
     <>
       <VisualProgrammingUI/>
-      <button onClick={runProgram}>run program</button>
+      <button onClick={runProgram}>Run Program</button>
     </>
   )
 }