feat: localization (#196)

* Started adding locale translations :)

* Added some more translations

* Working on translating even more pages

* More translations

* Added test default locale retrieval

* replace `intl.formatMessage` with custom `t` hook

* add more translations

* improve title syntax

* add more translations

* translate admin config page

* translated error messages

* add language selecter

* minor fixes

* improve language handling

* add upcoming languages

* add `crowdin.yml`

* run formatter

---------

Co-authored-by: Steve Tautonico <stautonico@gmail.com>

backend/src/config/dto/adminConfig.dto.ts

@@ -14,9 +14,6 @@ export class AdminConfigDTO extends ConfigDTO {
   @Expose()
   updatedAt: Date;
 
-  @Expose()
-  description: string;
-
   @Expose()
   obscured: boolean;