Adding new flags for supported locales (#420)

* Adding new flags for supported locales
* Removing pl-PL locale code from tests
* Linting

app/client/lib/localization.ts

@@ -40,7 +40,13 @@ export async function setupLocale() {
       const resourceUrl = loadPath.replace('{{lng}}', lang.replace("-", "_")).replace('{{ns}}', n);
       const response = await fetch(resourceUrl);
       if (!response.ok) {
-        throw new Error(`Failed to load ${resourceUrl}`);
+        // Throw only if we don't have any fallbacks.
+        if (lang === i18next.options.fallbackLng && n === i18next.options.defaultNS) {
+          throw new Error(`Failed to load ${resourceUrl}`);
+        } else {
+          console.warn(`Failed to load ${resourceUrl}`);
+          return;
+        }
       }
       i18next.addResourceBundle(lang, n, await response.json());
     }

app/common/Locales.ts

@@ -75,7 +75,12 @@ export function getCountryCode(locale: string) {
   if (locale === 'en') { return 'US'; }
   let countryCode = locale.split(/[-_]/)[1];
   if (countryCode) { return countryCode.toUpperCase(); }
-  countryCode = locale.toUpperCase();
+
+  // Some defaults that we support and can't be read from language code.
+  countryCode = {
+    'uk': 'UA', // Ukraine
+  }[locale] ?? locale.toUpperCase();
+
   // Test if we can use language as a country code.
   if (localeCodes.map(code => code.split(/[-_]/)[1]).includes(countryCode)) {
     return countryCode;