Revert "Admin Log Browser Improvements (#39130)"

This reverts commit f67cebf7a4.

Per request of @Kowlin and @southbridge-fur

Check out https://github.com/space-wizards/space-station-14/issues/39960 for further information

Content.Client/Administration/UI/CustomControls/AdminLogLabel.cs

@@ -0,0 +1,33 @@
+using Content.Shared.Administration.Logs;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+
+namespace Content.Client.Administration.UI.CustomControls;
+
+public sealed class AdminLogLabel : RichTextLabel
+{
+    public AdminLogLabel(ref SharedAdminLog log, HSeparator separator)
+    {
+        Log = log;
+        Separator = separator;
+
+        SetMessage($"{log.Date:HH:mm:ss}: {log.Message}");
+        OnVisibilityChanged += VisibilityChanged;
+    }
+
+    public SharedAdminLog Log { get; }
+
+    public HSeparator Separator { get; }
+
+    private void VisibilityChanged(Control control)
+    {
+        Separator.Visible = Visible;
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        base.Dispose(disposing);
+
+        OnVisibilityChanged -= VisibilityChanged;
+    }
+}

Content.Client/Administration/UI/CustomControls/PlayerListControl.xaml.cs

@@ -1,15 +1,16 @@
 using System.Linq;
-using System.Text.RegularExpressions;
 using Content.Client.Administration.Systems;
 using Content.Client.UserInterface.Controls;
 using Content.Client.Verbs.UI;
 using Content.Shared.Administration;
 using Robust.Client.AutoGenerated;
+using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.XAML;
 using Robust.Shared.Input;
+using Robust.Shared.Utility;
 
 namespace Content.Client.Administration.UI.CustomControls;
 
@@ -95,26 +96,13 @@ public sealed partial class PlayerListControl : BoxContainer
     private void FilterList()
     {
         _sortedPlayerList.Clear();
-
-        Regex filterRegex;
-        // There is no neat way to handle invalid regex being submitted other than
-        // catching and ignoring the exception which gets thrown when it's invalid.
-        try
-        {
-            filterRegex = new Regex(FilterLineEdit.Text, RegexOptions.IgnoreCase);
-        }
-        catch (ArgumentException)
-        {
-            return;
-        }
-
         foreach (var info in _playerList)
         {
             var displayName = $"{info.CharacterName} ({info.Username})";
             if (info.IdentityName != info.CharacterName)
                 displayName += $" [{info.IdentityName}]";
             if (!string.IsNullOrEmpty(FilterLineEdit.Text)
-                && !filterRegex.IsMatch(displayName))
+                && !displayName.ToLowerInvariant().Contains(FilterLineEdit.Text.Trim().ToLowerInvariant()))
                 continue;
             _sortedPlayerList.Add(info);
         }

Content.Client/Administration/UI/CustomControls/PlayerListEntry.xaml.cs

@@ -1,8 +1,10 @@
 using Content.Client.Stylesheets;
 using Content.Shared.Administration;
 using Robust.Client.AutoGenerated;
+using Robust.Client.GameObjects;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Utility;
 
 namespace Content.Client.Administration.UI.CustomControls;