Adding new About.Contact (missing) translation and merging About localization keys, for en-US and pt-BR locales

Author: cassiano

client/modules/About/pages/About.jsx

@@ -95,7 +95,7 @@ const About = () => {
         ))}
 
         <Contact>
-          <h2>{t('Contact')}</h2>
+          <h2>{t('About.Contact')}</h2>
           <div>
             <ContactTitle>{t('About.Email')}</ContactTitle>
             <ContactHandles>

client/modules/IDE/components/Header/MobileNav.jsx

@@ -455,7 +455,7 @@ const MoreMenu = () => {
           <MobileMenuItem href="https://p5js.org/reference/">
             {t('Nav.Help.Reference')}
           </MobileMenuItem>
-          <MobileMenuItem href="/about">{t('Nav.Help.About')}</MobileMenuItem>
+          <MobileMenuItem href="/about">{t('About.Title')}</MobileMenuItem>
         </ParentMenuContext.Provider>
       </ul>
     </div>

client/modules/IDE/components/Header/Nav.jsx

@@ -287,7 +287,7 @@ const ProjectMenu = () => {
           {t('Nav.Help.Reference')}
         </MenubarItem>
         <MenubarItem id="help-about" href="/about">
-          {t('Nav.Help.About')}
+          {t('About.Title')}
         </MenubarItem>
         <MenubarItem
           id="help-report-bug"

translations/locales/en-US/translations.json

@@ -27,7 +27,6 @@
       "Title": "Help",
       "KeyboardShortcuts": "Keyboard Shortcuts",
       "Reference": "Reference",
-      "About": "About",
       "ReportBug": "Report a Bug",
       "ChatOnDiscord": "Chat On Discord",
       "PostOnTheForum": "Post on the Forum"
@@ -135,7 +134,8 @@
       "Report": "Report broken or incorrect behavior with the p5.js Editor.",
       "Forum": "Ask questions, share sketches, and get help from the p5.js community.",
       "Discord": "Chat with the p5.js community and get quick help."
-    }
+    },
+    "Contact": "Contact Us"
   },
   "Toast": {
     "OpenedNewSketch": "Opened new sketch.",

translations/locales/pt-BR/translations.json

@@ -27,7 +27,6 @@
       "Title": "Ajuda",
       "KeyboardShortcuts": "Atalhos de Teclado",
       "Reference": "Referência",
-      "About": "Sobre",
       "ReportBug": "Reportar um Erro",
       "ChatOnDiscord": "Conversar no Discord",
       "PostOnTheForum": "Postar no Fórum"
@@ -127,7 +126,8 @@
       "Report": "Reporte um erro ou comportamento incorreto com o Editor p5.js.",
       "Forum": "Expanda as possibilidades do p5.js com bibliotecas criadas pela comunidade.",
       "Discord": "Expanda as possibilidades do p5.js com bibliotecas criadas pela comunidade."
-    }
+    },
+    "Contact": "Entre em Contato"
   },
   "Toast": {
     "OpenedNewSketch": "Novo esboço aberto.",