Add page to download launcher. Fix layout spacing

LANCommander/UI/Pages/Launcher.razor

@@ -0,0 +1,61 @@
+@page "/Launcher"
+@layout BasicLayout
+@using LANCommander.Models
+@inject UpdateService UpdateService
+@inject NavigationManager NavigationManager
+
+<div class="launcher-download">
+    @switch (Settings.Theme)
+    {
+        case LANCommanderTheme.Light:
+            <img src="/static/logo.svg" />
+            break;
+
+        case LANCommanderTheme.Dark:
+            <img src="/static/logo-dark.svg" />
+            break;
+    }
+
+    <h1>Grab the Launcher!</h1>
+
+    <a href="@DownloadLink" class="ant-btn ant-btn-primary ant-btn-lg">
+        <Icon Type="@IconType.Outline.Download" />
+        <span>Download</span>
+    </a>
+
+    <Space>
+        <SpaceItem>
+            <Button Type="@ButtonType.Link" OnClick="@(() => NavigationManager.NavigateTo("Identity/Account/Login"))">Login</Button>
+            <Button Type="@ButtonType.Link" OnClick="@(() => NavigationManager.NavigateTo("Identity/Account/Register"))">Register</Button>
+        </SpaceItem>
+    </Space>
+</div>
+
+@code {
+    LANCommanderSettings Settings = SettingService.GetSettings();
+
+    string DownloadLink { get; set; } = "/Launcher/Download";
+
+    protected override async Task OnInitializedAsync()
+    {
+        var version = UpdateService.GetCurrentVersion();
+        var fileName = $"LANCommander.Client-Windows-x64-v{version}.zip";
+        var path = Path.Combine(Settings.Launcher.StoragePath, fileName);
+
+        if (!File.Exists(path) || !Settings.Launcher.HostUpdates)
+        {
+            var release = await UpdateService.GetRelease(version);
+
+            if (release == null)
+                release = (await UpdateService.GetReleases(1)).FirstOrDefault();
+
+            if (release != null)
+            {
+                var asset = release.Assets.FirstOrDefault(a => a.Name == fileName);
+
+                if (asset != null)
+                    DownloadLink = asset.BrowserDownloadUrl;
+            }
+        }
+    }
+}

LANCommander/UI/Shared/BasicLayout.razor

@@ -0,0 +1,26 @@
+@inherits LayoutComponentBase
+@using Microsoft.AspNetCore.Components.Authorization;
+@using System.Security.Claims;
+@inject AuthenticationStateProvider AuthenticationStateProvider
+
+<Layout Class="layout">
+    <Content Style="padding: 24px;">
+        @Body
+    </Content>
+
+    <Footer Style="text-align: center; padding-top: 0;">
+        LANCommander v@(UpdateService.GetCurrentVersion().ToString())
+    </Footer>
+</Layout>
+
+@code {
+    ClaimsPrincipal User;
+
+    protected override async Task OnInitializedAsync()
+    {
+        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
+
+        if (authState.User.Identity.IsAuthenticated)
+            User = authState.User;
+    }
+}

LANCommander/UI/Shared/MainLayout.razor

@@ -58,7 +58,7 @@
 
     </MainMenu>
 
-    <Content Style="padding: 24px; min-height: 100vh;">
+    <Content Style="padding: 24px;">
         @Body
     </Content>
 

LANCommander/wwwroot/css/site.css

@@ -1,3 +1,12 @@
+.layout {
+    min-height: 100vh;
+}
+
+.ant-layout-content {
+    display: flex;
+    flex-direction: column;
+}
+
 .ant-header {
     display: flex;
 }
@@ -341,6 +350,25 @@ label.ant-btn-icon-only {
     padding: 6px 8px;
 }
 
+.launcher-download {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 20px;
+    flex-grow: 1;
+    justify-content: center;
+}
+
+.launcher-download img {
+    max-width: 500px;
+    width: 75vw;
+}
+
+.launcher-download h1 {
+    font-size: 32px;
+    margin-bottom: 0;
+}
+
 @media screen and (min-width: 768px) {
     .mobile-menu {
         display: none;