dev: Added initial version of the grpc api. Added relevant dummy settings to creds (they have no effect rn)

dev: Yt searches now INTERNALLY return multiple results but there is no way right now to paginate plain text results
dev: moved some stuff around

src/NadekoBot/Modules/Searches/Search/Youtube/InvidiousYtSearchService.cs

@@ -18,7 +18,7 @@ public sealed class InvidiousYtSearchService : IYoutubeSearchService, INService
         _rng = new();
     }
 
-    public async Task<VideoInfo?> SearchAsync(string query)
+    public async Task<VideoInfo[]?> SearchAsync(string query)
     {
         ArgumentNullException.ThrowIfNull(query);
 
@@ -35,6 +35,7 @@ public sealed class InvidiousYtSearchService : IYoutubeSearchService, INService
         var url = $"{instance}/api/v1/search"
                   + $"?q={query}"
                   + $"&type=video";
+        
         using var http = _http.CreateClient();
         var res = await http.GetFromJsonAsync<List<InvidiousSearchResponse>>(
             url);
@@ -42,6 +43,6 @@ public sealed class InvidiousYtSearchService : IYoutubeSearchService, INService
         if (res is null or { Count: 0 })
             return null;
 
-        return new VideoInfo(res[0].VideoId);
+        return res.Map(r => new VideoInfo(r.VideoId));
     }
 }