refactor: update translation title for about headline

Author: raclim

client/modules/About/pages/About.jsx

@@ -73,7 +73,7 @@ const About = () => {
               focusable="false"
             />
             <div>
-              <p>{t('About.OneLine')}</p>
+              <p>{t('About.Headline')}</p>
             </div>
           </IntroHeadline>
           <IntroDescription>

translations/locales/en-US/translations.json

@@ -89,7 +89,7 @@
   "About": {
     "Title": "About",
     "TitleHelmet": "p5.js Web Editor | About",
-    "OneLine": "Create, share, and remix p5.js sketches with the p5.js Editor.",
+    "Headline": "Create, share, and remix p5.js sketches with the p5.js Editor.",
     "Contribute": "Contribute",
     "IntroDescription1": "p5.js is a free, open-source JavaScript library for learning to code and make art. Using the p5.js Editor, you can create, share, and remix p5.js sketches without needing to download or configure anything.",
     "IntroDescription2": "We believe software the tools to learn it, should be as open and inclusive as possible. You can support this work by making a donation to the Processing Foundation, the organization that supports p5.js. Your donation supports sofware development for p5.js, education resources like code examples and tutorials, fellowships, and community events.",