Add Divider atom

core/ui/compose/designsystem/src/main/kotlin/app/k9mail/core/ui/compose/designsystem/atom/Divider.kt

@@ -0,0 +1,48 @@
+package app.k9mail.core.ui.compose.designsystem.atom
+
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import app.k9mail.core.ui.compose.theme.MainTheme
+import app.k9mail.core.ui.compose.theme.PreviewWithThemes
+import androidx.compose.material.Divider as MaterialDivider
+
+@Composable
+fun Divider(
+    modifier: Modifier = Modifier,
+    color: Color = MaterialTheme.colors.onSurface.copy(alpha = DIVIDER_ALPHA),
+    thickness: Dp = 1.dp,
+    startIndent: Dp = 0.dp,
+) {
+    MaterialDivider(
+        modifier = modifier,
+        color = color,
+        thickness = thickness,
+        startIndent = startIndent,
+    )
+}
+
+private const val DIVIDER_ALPHA = 0.12f
+
+@Preview(showBackground = true)
+@Composable
+internal fun DividerPreview() {
+    PreviewWithThemes {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(MainTheme.spacings.double),
+        ) {
+            Divider(
+                modifier = Modifier.fillMaxWidth(),
+            )
+        }
+    }
+}