Update .gitignore and remove status bar color change

This commit updates the `.gitignore` file to exclude release-specific files and removes the explicit setting of the status bar color in `MainActivity.kt`.

Key changes:
- Added `app/release/app-release.apk`, `app/release/baselineProfiles/*/*.dm`, and `app/release/output-metadata.json` to `.gitignore`.
- Removed `window.statusBarColor = Color.Red.toArgb()` from `MainActivity.kt`.

Author: JahidHasanCO

.gitignore

@@ -13,3 +13,7 @@
 .externalNativeBuild
 .cxx
 local.properties
+/app/release/app-release.apk
+/app/release/baselineProfiles/0/app-release.dm
+/app/release/baselineProfiles/1/app-release.dm
+/app/release/output-metadata.json

app/src/main/java/dev/jahidhasanco/diffly/presentation/MainActivity.kt

@@ -5,8 +5,6 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.runtime.SideEffect
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalView
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsControllerCompat
@@ -26,7 +24,6 @@ class MainActivity : ComponentActivity() {
                 SideEffect {
                     val window = (view.context as Activity).window
                     WindowCompat.setDecorFitsSystemWindows(window, true)
-                    window.statusBarColor = Color.Red.toArgb()
                     WindowInsetsControllerCompat(window, view).isAppearanceLightStatusBars = true
                 }
             }