UI: Fixed Slovenian locale after merge

ui-ngx/src/app/core/translate/translate-default-compiler.ts

@@ -65,6 +65,7 @@ export class TranslateDefaultCompiler extends TranslateMessageFormatCompiler {
     } catch (e) {
       console.warn(`Failed to parse source: ${src}`);
       console.error(e);
+      return false;
     }
     const res = tokens.filter(
       (value) => typeof value !== 'string' && value.type === 'plural'

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -2494,7 +2494,8 @@
             "ro_RO": "Română",
             "lv_LV": "Latviešu",
             "ka_GE": "ქართული",
-            "pt_BR": "Português do Brasil"
+            "pt_BR": "Português do Brasil",
+            "sl_SI": "Slovenščina"
         }
     }
 }