Use correct locale, catch error in installer.

app/Http/Controllers/System/InstallController.php

@@ -116,7 +116,7 @@ final class InstallController extends Controller
                 try {
                     $result = $this->executeCommand($command, $parameters);
                 } catch (FireflyException $e) {
-                    Log::error($e->getMessage());
+                    Log::error(sprintf('%s when trying %s',$e->getMessage(), $command));
                     Log::error($e->getTraceAsString());
                     if (str_contains($e->getMessage(), 'open_basedir restriction in effect')) {
                         $this->lastError = self::BASEDIR_ERROR;

resources/assets/v3/js/boot/bootstrap.js

@@ -62,6 +62,10 @@ getFreshVariable('lastActivity').then((serverValue) => {
             store.set('start', range.start);
             store.set('end', range.end);
         }
+        //
+        if('equal' === values.locale) {
+            values.locale = values.language;
+        }
 
         // save local in window.__ something
         window.__localeId__ = values.locale;