UI:Fix crash on log upload

Earlier code calls enable on platform specific UI elements resulting in
crash since these elements are deleted on Linux.

UI/window-basic-main.cpp

@@ -5279,7 +5279,9 @@ void OBSBasic::UploadLog(const char *subdir, const char *file, const bool crash)
 		return;
 
 	ui->menuLogFiles->setEnabled(false);
+#if defined(_WIN32) || defined(__APPLE__)
 	ui->menuCrashLogs->setEnabled(false);
+#endif
 
 	stringstream ss;
 	ss << "OBS " << App()->GetVersionString() << " log file uploaded at "
@@ -5361,7 +5363,9 @@ void OBSBasic::on_actionCheckForUpdates_triggered()
 void OBSBasic::logUploadFinished(const QString &text, const QString &error)
 {
 	ui->menuLogFiles->setEnabled(true);
+#if defined(_WIN32) || defined(__APPLE__)
 	ui->menuCrashLogs->setEnabled(true);
+#endif
 
 	if (text.isEmpty()) {
 		OBSMessageBox::critical(
@@ -5375,7 +5379,9 @@ void OBSBasic::logUploadFinished(const QString &text, const QString &error)
 void OBSBasic::crashUploadFinished(const QString &text, const QString &error)
 {
 	ui->menuLogFiles->setEnabled(true);
+#if defined(_WIN32) || defined(__APPLE__)
 	ui->menuCrashLogs->setEnabled(true);
+#endif
 
 	if (text.isEmpty()) {
 		OBSMessageBox::critical(