Fix two places that weren't using base url

Author: alan412

src/i18n/config.ts

@@ -47,6 +47,10 @@ i18n
     interpolation: {
       escapeValue: false,
     },
+    backend: {
+      // Path to the translation files
+      loadPath: import.meta.env.BASE_URL + "locales/{{lng}}/{{ns}}.json",
+    },
   });
 
 export default i18n;

src/reactComponents/Header.tsx

@@ -87,7 +87,7 @@ export default function Header(props: HeaderProps): React.JSX.Element {
         <img
           height={LOGO_HEIGHT}
           style={{objectFit: 'contain'}}
-          src={isDarkTheme ? "/FIRST_HorzRGB_reverse.png" : "/FIRST_HorzRGB.png"}
+          src={import.meta.env.BASE_URL + (isDarkTheme ? "/FIRST_HorzRGB_reverse.png" : "/FIRST_HorzRGB.png")}
           alt="FIRST Logo"
         />
         <Antd.Typography