Fix Invidious search API parameters

Update search query parameters to match Invidious API:
- Change sort_by to sort
- Change upload_date to date
- Change view_count to views

Fixes #881

Model/Applications/InvidiousAPI.swift

@@ -409,7 +409,7 @@ final class InvidiousAPI: Service, ObservableObject, VideosAPI {
     func search(_ query: SearchQuery, page: String?) -> Resource {
         var resource = resource(baseURL: account.url, path: basePathAppending("search"))
             .withParam("q", searchQuery(query.query))
-            .withParam("sort_by", query.sortBy.parameter)
+            .withParam("sort", query.sortBy.parameter)
             .withParam("type", "all")
 
         if let date = query.date, date != .any {

Model/Search/SearchQuery.swift

@@ -47,9 +47,9 @@ final class SearchQuery: ObservableObject {
         var parameter: String {
             switch self {
             case .uploadDate:
-                return "upload_date"
+                return "date"
             case .viewCount:
-                return "view_count"
+                return "views"
             default:
                 return rawValue
             }