Make Sync Modal remember collapsed state (#1929)

* Make Sync Modal remeber collapsed state

This makes the sync modal use the bootstrap collapse component instead of animatecss. It also removed animatecss as it seemed to be only used there.  Also, it will now remember if you collapsed it between page loads which since the new eth stuff keeps asking to configure it on my dev env.

* Sync modal improvements

- Use chevron icon and indicate toggle state
- Smooth opening animation by toggling element without padding
- Better modal content padding
- Run JS immediately to prevent flickering

Co-authored-by: Dennis Reimann <mail@dennisreimann.de>

BTCPayServer/Views/Shared/LayoutPartials/SyncModal.cshtml

@@ -1,51 +1,61 @@
 @using BTCPayServer.Contracts
 @inject IEnumerable<ISyncSummaryProvider> SyncSummaryProviders;
-@if(SyncSummaryProviders.Any(provider => !provider.AllAvailable()))
+@if (SyncSummaryProviders.Any(provider => !provider.AllAvailable()))
 {
     <!-- Modal -->
-    <div id="modalDialog" class="modal-dialog animated bounceInRight"
-         style="z-index:1000">
-        @* Z-Index less then other bootstrap modals (1050) *@
-
-        <!-- Modal content-->
+    <div id="syncModal" class="modal-dialog">
         <div class="modal-content">
-            <div class="modal-header">
+            <a class="modal-header btn-link border-0 text-decoration-none cursor-pointer align-items-center" data-toggle="collapse" data-target="#syncModalContent">
                 <h4 class="modal-title">Your nodes are synching...</h4>
-                <button type="button" class="close" onclick="dismissSyncModal()">&times;</button>
+                <span class="fa fa-chevron-down" style="font-size:1em;"></span>
+            </a>
+            <div id="syncModalContent" class="collapse show">
+                <div class="modal-body pt-0">
+                    <p>
+                        Your node is synching the entire blockchain and validating the consensus rules...
+                    </p>
+                    @foreach (var provider in SyncSummaryProviders)
+                    {
+                        <partial name="@provider.Partial"/>
+                    }
+                    <p>
+                        <a href="https://www.youtube.com/watch?v=OrYDehC-8TU" target="_blank">Watch this video</a> to understand the importance of blockchain synchronization.
+                    </p>
+                    <p class="mb-0">If you really don't want to synch and you are familiar with the command line, check <a href="https://github.com/btcpayserver/btcpayserver-docker/blob/master/contrib/FastSync/README.md" target="_blank">FastSync</a>.</p>
+                </div>
             </div>
-            <div class="modal-body" style="max-height: 400px; overflow-y: scroll;">
-                <p>
-                    Your node is synching the entire blockchain and validating the consensus rules...
-                </p>
-                @foreach (var provider in SyncSummaryProviders)
-                {
-                    <partial name="@provider.Partial" />
-                }
-                <p>
-                    <a href="https://www.youtube.com/watch?v=OrYDehC-8TU" target="_blank">Watch this video</a> to understand the importance of blockchain synchronization.
-                </p>
-
-                <p>If you really don't want to synch and you are familiar with the command line, check <a href="https://github.com/btcpayserver/btcpayserver-docker/blob/master/contrib/FastSync/README.md" target="_blank">FastSync</a>.</p>
-            </div>
-
         </div>
-
     </div>
-
-    @*<link href="~/vendor/animatecss/animate.css" rel="stylesheet" asp-append-version="true" />*@
-    <script type="text/javascript">
-        function dismissSyncModal() {
-            $("#modalDialog").addClass('animated bounceOutRight')
+    <script>
+        var syncModalContent = $('#syncModalContent');
+        if (localStorage.getItem("sync-collapsed")){
+            syncModalContent.removeClass("show");
         }
+        syncModalContent.on('hidden.bs.collapse', function () {
+            localStorage.setItem("sync-collapsed", "true");
+        }).on('shown.bs.collapse', function () {
+            localStorage.removeItem("sync-collapsed");
+        });
     </script>
-
     <style type="text/css">
-        #modalDialog {
+        #syncModal {
             position: fixed;
-            bottom: 20px;
-            right: 20px;
-            margin: 0px;
+            bottom: 10px;
+            right: 10px;
+            margin: 0;
+            z-index: 1000;
+            width: 500px;
+            max-width: 100%;
+        }
+        #syncModal .modal-body {
+            max-height: 400px; 
+            overflow-y: scroll;
+        }
+        #syncModal .fa-chevron-down {
+            transition: transform .35s;
+        }
+        #syncModal .collapsed .fa-chevron-down {
+            transform: rotate(-90deg);
         }
     </style>
-
 }

BTCPayServer/bundleconfig.json

@@ -4,7 +4,6 @@
         "inputFiles": [
             "wwwroot/vendor/magnific-popup/magnific-popup.css",
             "wwwroot/vendor/font-awesome/css/font-awesome.css",
-            "wwwroot/vendor/animatecss/animate.css",
             "wwwroot/vendor/flatpickr/flatpickr.css",
             "wwwroot/main/fonts/OpenSans.css",
             "wwwroot/main/site.css"