feat(creator): 채널 홈 Activity 진입점을 추가한다

app/src/main/java/kr/co/vividnext/sodalive/base/BaseActivity.kt

@@ -31,6 +31,8 @@ abstract class BaseActivity<T : ViewBinding>(
     lateinit var binding: T
         private set
 
+    protected open val shouldApplySystemBarTopInset: Boolean = true
+
     val screenWidth: Int by lazy {
         resources.displayMetrics.widthPixels
     }
@@ -81,7 +83,7 @@ abstract class BaseActivity<T : ViewBinding>(
 
             // 루트는 좌/우/하만 처리(상단은 Toolbar에 위임). IME가 등장하면 하단 패딩을 IME 높이까지 확장
             val left = max(systemBars.left, ime.left)
-            val top = systemBars.top
+            val top = if (shouldApplySystemBarTopInset) systemBars.top else 0
             val right = max(systemBars.right, ime.right)
             val bottom = max(systemBars.bottom, ime.bottom)
             v.setPadding(left, top, right, bottom)