Fix icon extraction, drop overlay styling, and card padding

src/core/database.rs

@@ -703,7 +703,17 @@ impl Database {
                 last_scanned = datetime('now')",
             params![path, filename, appimage_type, size_bytes, is_executable, file_modified],
         )?;
-        Ok(self.conn.last_insert_rowid())
+        // last_insert_rowid() returns 0 for ON CONFLICT UPDATE, so query the actual id
+        let id = self.conn.last_insert_rowid();
+        if id != 0 {
+            return Ok(id);
+        }
+        let id: i64 = self.conn.query_row(
+            "SELECT id FROM appimages WHERE path = ?1",
+            params![path],
+            |row| row.get(0),
+        )?;
+        Ok(id)
     }
 
     pub fn update_metadata(