style: Use empty SizedBox when toggle is off for layout consistency

Author: chungwwei

lib/widgets/all_channels.dart

@@ -109,21 +109,23 @@ class AllChannelsListEntry extends StatelessWidget {
         onLongPress: () {
           showChannelActionSheet(context, channelId: channel.streamId);
         },
-        child: Row(spacing: 6, children: [
-          Icon(
-            size: 20,
-            color: colorSwatchFor(context, subscription).iconOnPlainBackground,
-            iconDataForStream(channel)),
-          Expanded(
-            child: Text(
-              style: TextStyle(
-                color: designVariables.textMessage,
-                fontSize: 17,
-                height: 20 / 17,
-              ).merge(weightVariableTextStyle(context, wght: 600)),
-              channel.name)),
-          if (hasContentAccess) _SubscribeToggle(channel: channel),
-      ])));
+        child: SizedBox(
+          height: 36,
+          child: Row(spacing: 6, children: [
+            Icon(
+              size: 20,
+              color: colorSwatchFor(context, subscription).iconOnPlainBackground,
+              iconDataForStream(channel)),
+            Expanded(
+              child: Text(
+                style: TextStyle(
+                  color: designVariables.textMessage,
+                  fontSize: 17,
+                  height: 20 / 17,
+                ).merge(weightVariableTextStyle(context, wght: 600)),
+                channel.name)),
+                hasContentAccess ?_SubscribeToggle(channel: channel): const SizedBox.shrink(),
+          ]))));
   }
 }