feat: add icon for url throughout app

resolves #349

app/src/main/java/ly/david/mbjc/ui/stats/AddRelationshipsSection.kt

@@ -58,14 +58,10 @@ internal fun LazyListScope.addRelationshipsSection(
             Row(
                 verticalAlignment = Alignment.CenterVertically
             ) {
-                if (linkedEntity == MusicBrainzEntity.URL) {
-                    Spacer(modifier = Modifier.padding(end = 32.dp))
-                } else {
-                    EntityIcon(
-                        modifier = Modifier.padding(end = 8.dp),
-                        entity = linkedEntity
-                    )
-                }
+                EntityIcon(
+                    modifier = Modifier.padding(end = 8.dp),
+                    entity = linkedEntity
+                )
                 Text(
                     style = TextStyles.getCardBodySubTextStyle(),
                     text = "${stringResource(id = linkedEntity.getDisplayTextRes())}: ${relationTypeCount.count}"

ui/common/src/main/java/ly/david/ui/common/MusicBrainzResourceExt.kt

@@ -7,6 +7,7 @@ import androidx.compose.material.icons.filled.CollectionsBookmark
 import androidx.compose.material.icons.filled.CorporateFare
 import androidx.compose.material.icons.filled.Event
 import androidx.compose.material.icons.filled.Folder
+import androidx.compose.material.icons.filled.Link
 import androidx.compose.material.icons.filled.List
 import androidx.compose.material.icons.filled.Mic
 import androidx.compose.material.icons.filled.MusicNote
@@ -56,8 +57,8 @@ fun MusicBrainzEntity.getIcon(): ImageVector? {
         MusicBrainzEntity.RELEASE_GROUP -> Icons.Default.Folder
         MusicBrainzEntity.SERIES -> Icons.Default.List
         MusicBrainzEntity.WORK -> Icons.Default.MusicNote
+        MusicBrainzEntity.URL -> Icons.Default.Link
         else -> {
-            // Non-searchable entities like Genre, URL
             // No icons.
             null
         }