NadekoBot Patronage system, Search commands improvements + fixes

src/NadekoBot/Modules/Searches/Search/Searx/SearxImageSearchResultEntry.cs

@@ -0,0 +1,14 @@
+using System.Text.Json.Serialization;
+
+namespace NadekoBot.Modules.Searches;
+
+public sealed class SearxImageSearchResultEntry : IImageSearchResultEntry
+{
+    public string Link
+        => ImageSource.StartsWith("//")
+            ? "https:" + ImageSource
+            : ImageSource;
+
+    [JsonPropertyName("img_src")]
+    public string ImageSource { get; set; } = string.Empty;
+}