feat: add docs about changing test env

docs/cli-application/commands.mdx

@@ -1066,23 +1066,23 @@ Set the name of the file and also the name that will
 be used used as reference to create the custom properties 
 to be used in the template:
 
-```ts
+```typescript
 this.generator.fileName('UserRepository.ts')
 ```
 
 #### `this.generator.destination()`
 
 Set the destination where the file should be created: 
 
-```ts
+```typescript
 this.generator.destination(Path.repositories())
 ```
 
 #### `this.generator.extension()`
 
 Set the extension of your file: 
 
-```ts
+```typescript
 this.generator.extension('ts')
 ```