Add missing field initial value

Suppresses the following warning:
qBittorrent/src/base/bittorrent/categoryoptions.cpp: In static member function ‘static BitTorrent::CategoryOptions BitTorrent::CategoryOptions::fromJSON(const QJsonObject&)’:
qBittorrent/src/base/bittorrent/categoryoptions.cpp:44:59: warning: missing initializer for member ‘BitTorrent::CategoryOptions::DownloadPathOption::path’ [-Wmissing-field-initializers]
   44 |         options.downloadPath = {downloadPathValue.toBool()};

src/base/bittorrent/categoryoptions.cpp

@@ -41,7 +41,7 @@ BitTorrent::CategoryOptions BitTorrent::CategoryOptions::fromJSON(const QJsonObj
 
     const QJsonValue downloadPathValue = jsonObj.value(OPTION_DOWNLOADPATH);
     if (downloadPathValue.isBool())
-        options.downloadPath = {downloadPathValue.toBool()};
+        options.downloadPath = {downloadPathValue.toBool(), {}};
     else if (downloadPathValue.isString())
         options.downloadPath = {true, downloadPathValue.toString()};
 

src/gui/torrentcategorydialog.cpp

@@ -142,7 +142,7 @@ BitTorrent::CategoryOptions TorrentCategoryDialog::categoryOptions() const
     if (m_ui->comboUseDownloadPath->currentIndex() == 1)
         categoryOptions.downloadPath = {true, m_ui->comboDownloadPath->selectedPath()};
     else if (m_ui->comboUseDownloadPath->currentIndex() == 2)
-        categoryOptions.downloadPath = {false};
+        categoryOptions.downloadPath = {false, {}};
 
     return categoryOptions;
 }