Merge pull request '회원가입 시 닉네임 validation 조건' (#117) from test into main

Reviewed-on: #117

src/main/kotlin/kr/co/vividnext/sodalive/member/signUp/SignUpValidator.kt

@@ -18,7 +18,7 @@ class SignUpValidator {
     }
 
     fun nicknameValidation(nickname: String): String {
-        if (nickname.length < 2) {
+        if (nickname.trim().length < 2) {
             return "닉네임은 2자 이상 입력해 주세요."
         }