fix: Update player name binding syntax for null safety in Claim, Delete, and Lift views

Author: frasermolyneux

src/XtremeIdiots.Portal.Web/Views/AdminActions/Claim.cshtml

@@ -44,7 +44,7 @@
                             @Html.DisplayNameFor(model => model.Player.Username)
                         </dt>
                         <dd class="col-sm-10">
-                            <player-name value="@Model.Player?.Username"></player-name>
+                            <player-name value="@(Model?.Player?.Username)"></player-name>
                         </dd>
                         <dt class="col-sm-2">
                             @Html.DisplayNameFor(model => model.Text)

src/XtremeIdiots.Portal.Web/Views/AdminActions/Delete.cshtml

@@ -31,7 +31,7 @@
                         </div>
                         <div class="detail-field col-sm-6">
                             <dt class="detail-label">@Html.DisplayNameFor(model => model.Player.Username)</dt>
-                            <dd class="detail-value"><player-name value="@Model.Player?.Username"></player-name></dd>
+                            <dd class="detail-value"><player-name value="@(Model?.Player?.Username)"></player-name></dd>
                         </div>
                         <div class="detail-field col-sm-12">
                             <dt class="detail-label">@Html.DisplayNameFor(model => model.Text)</dt>

src/XtremeIdiots.Portal.Web/Views/AdminActions/Lift.cshtml

@@ -45,7 +45,7 @@
                             @Html.DisplayNameFor(model => model.Player.Username)
                         </dt>
                         <dd class="col-sm-10">
-                            <player-name value="@Model.Player?.Username"></player-name>
+                            <player-name value="@(Model?.Player?.Username)"></player-name>
                         </dd>
                         <dt class="col-sm-2">
                             @Html.DisplayNameFor(model => model.Text)

src/XtremeIdiots.Portal.Web/Views/Servers/Details.cshtml

@@ -381,7 +381,7 @@
         // ─── Google Maps: Player Map (load on tab show) ───
         @{
             var mapsApiKey = Configuration["Google:MapsApiKey"];
-            var isValidMapsApiKey = !string.IsNullOrEmpty(mapsApiKey) && System.Text.RegularExpressions.Regex.IsMatch(mapsApiKey, @@"^[A-Za-z0-9_-]+$", System.Text.RegularExpressions.RegexOptions.None, TimeSpan.FromSeconds(1));
+            var isValidMapsApiKey = !string.IsNullOrEmpty(mapsApiKey) && System.Text.RegularExpressions.Regex.IsMatch(mapsApiKey, @"^[A-Za-z0-9_-]+$", System.Text.RegularExpressions.RegexOptions.None, TimeSpan.FromSeconds(1));
         }
         @if (isValidMapsApiKey)
         {