fixup! feat: Shoehorn channel-opening flow into first trade flow

- Just minor things that I've noticed broke the ui on the ios simulator.
- Pop the last dialog when the confirming the trade from the channel configurator.

Author: holzeis

Diff for: mobile/lib/features/trade/channel_configuration.dart

@@ -6,6 +6,7 @@ import 'package:get_10101/common/application/lsp_change_notifier.dart';
 import 'package:get_10101/common/domain/model.dart';
 import 'package:get_10101/common/value_data_row.dart';
 import 'package:get_10101/features/trade/domain/channel_opening_params.dart';
+import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 import 'package:slide_to_confirm/slide_to_confirm.dart';
 
@@ -45,7 +46,7 @@ channelConfiguration({
                     },
                     child: SingleChildScrollView(
                       child: SizedBox(
-                        height: 425,
+                        height: 455,
                         child: ChannelConfiguration(
                           marginTrader: marginTrader,
                           orderMatchingFee: orderMatchingFee,
@@ -127,7 +128,7 @@ class _ChannelConfiguration extends State<ChannelConfiguration> {
     return Form(
         key: _formKey,
         child: Container(
-            padding: const EdgeInsets.all(20),
+            padding: const EdgeInsets.only(top: 20, left: 20, right: 20),
             child: Column(children: [
               const Text("DLC Channel Configuration",
                   style: TextStyle(fontWeight: FontWeight.bold, fontSize: 17)),
@@ -237,9 +238,7 @@ class _ChannelConfiguration extends State<ChannelConfiguration> {
                             "DLC channel with you, creating your position in the process.",
                         style: DefaultTextStyle.of(context).style,
                       )),
-                      const SizedBox(
-                        height: 10,
-                      ),
+                      const SizedBox(height: 40),
                       // FIXME: The slider is disabled by default, even if the default values are okay.
                       AbsorbPointer(
                           absorbing: _formKey.currentState != null
@@ -252,11 +251,12 @@ class _ChannelConfiguration extends State<ChannelConfiguration> {
                                 color: Colors.white,
                                 size: 20,
                               ),
-                              onConfirmation: () => {
-                                    widget.onConfirmation(ChannelOpeningParams(
-                                        coordinatorReserve: counterpartyReserve,
-                                        traderReserve: ownReserve))
-                                  }))
+                              onConfirmation: () {
+                                GoRouter.of(context).pop();
+                                widget.onConfirmation(ChannelOpeningParams(
+                                    coordinatorReserve: counterpartyReserve,
+                                    traderReserve: ownReserve));
+                              }))
                     ],
                   ),
                 ),

Diff for: mobile/lib/features/trade/trade_bottom_sheet_confirmation.dart

@@ -61,7 +61,7 @@ tradeBottomSheetConfirmation(
             },
             child: SingleChildScrollView(
               child: SizedBox(
-                  height: 350,
+                  height: 380,
                   child: TradeBottomSheetConfirmation(
                     direction: direction,
                     sliderButtonKey: sliderButtonKey,