feat(ui): update app icon styling and splash screen assets

- Add background color and padding to the profile image in `HomeRoot.kt`
- Update `ic_launcher_background` color to `#121212`
- Reduce splash screen icon inset from 48dp to 32dp
- Update `app_icon.png` resource

Author: rainxchzed

composeApp/src/androidMain/res/drawable/ic_splash.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <inset xmlns:android="http://schemas.android.com/apk/res/android"
     android:drawable="@drawable/ic_logo"
-    android:inset="48dp"
+    android:inset="32dp"
     />

composeApp/src/androidMain/res/values/colors.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="ic_launcher_background">#1C1B1B</color>
+    <color name="ic_launcher_background">#121212</color>
 </resources>

core/presentation/src/commonMain/composeResources/drawable/app_icon.png

@@ -1,6 +1,7 @@
 package zed.rainxch.home.presentation
 
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -38,6 +39,7 @@ import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
@@ -352,7 +354,9 @@ private fun TopAppBar() {
                 contentDescription = null,
                 modifier = Modifier
                     .size(48.dp)
-                    .clip(CircleShape),
+                    .clip(CircleShape)
+                    .background(Color(0xff121212))
+                    .padding(4.dp),
                 contentScale = ContentScale.Crop
             )
         },