Add: PrefGroup composable

src/main/kotlin/com/machiav3lli/fdroid/ui/compose/components/prefs/PrefsGroup.kt

@@ -0,0 +1,59 @@
+package com.machiav3lli.fdroid.ui.compose.components.prefs
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.requiredHeight
+import androidx.compose.material3.LocalContentColor
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+@Composable
+fun PreferenceGroup(
+    modifier: Modifier = Modifier,
+    heading: String? = null,
+    content: @Composable () -> Unit
+) {
+    PreferenceGroupHeading(heading)
+    CompositionLocalProvider(
+        LocalContentColor provides MaterialTheme.colorScheme.primary
+    ) {
+        Surface(color = Color.Transparent) {
+            Column(modifier = modifier) {
+                content()
+            }
+        }
+    }
+}
+
+@Composable
+fun PreferenceGroupHeading(
+    heading: String? = null
+) = if (heading != null) {
+    Column(
+        verticalArrangement = Arrangement.Center,
+        modifier = Modifier
+            .height(48.dp)
+            .padding(horizontal = 32.dp)
+            .fillMaxWidth(),
+    ) {
+        Text(
+            text = heading,
+            style = MaterialTheme.typography.headlineMedium,
+            fontSize = 16.sp,
+            fontWeight = FontWeight.Bold,
+            color = MaterialTheme.colorScheme.onBackground
+        )
+    }
+} else Spacer(modifier = Modifier.requiredHeight(8.dp))