feat(lang): add Czech and Danish display languages (#2176)

src/context/LanguageContext.tsx

@@ -2,6 +2,8 @@ import React, { ReactNode } from 'react';
 
 export type AvailableLocale =
   | 'ca'
+  | 'cs'
+  | 'da'
   | 'de'
   | 'en'
   | 'el'
@@ -30,6 +32,14 @@ export const availableLanguages: AvailableLanguageObject = {
     code: 'ca',
     display: 'Català',
   },
+  cs: {
+    code: 'cs',
+    display: 'Čeština',
+  },
+  da: {
+    code: 'da',
+    display: 'Dansk',
+  },
   de: {
     code: 'de',
     display: 'Deutsch',

src/pages/_app.tsx

@@ -25,6 +25,10 @@ const loadLocaleData = (locale: AvailableLocale): Promise<any> => {
   switch (locale) {
     case 'ca':
       return import('../i18n/locale/ca.json');
+    case 'cs':
+      return import('../i18n/locale/cs.json');
+    case 'da':
+      return import('../i18n/locale/da.json');
     case 'de':
       return import('../i18n/locale/de.json');
     case 'el':