회원가입, 로그인 페이지 추가

app/src/main/res/layout/detail_toolbar.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="51.7dp"
+    android:background="@color/black"
+    android:paddingHorizontal="13.3dp">
+
+    <TextView
+        android:id="@+id/tv_back"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:drawablePadding="6.7dp"
+        android:fontFamily="@font/gmarket_sans_bold"
+        android:textColor="@color/color_eeeeee"
+        android:textSize="18.3sp"
+        app:drawableStartCompat="@drawable/ic_back"
+        tools:ignore="RelativeOverlap"
+        tools:text="소다라이브" />
+
+</RelativeLayout>