add MacOSX and Windows backend binaries, fix webpack.config.js
add MacOSX and Windows backend binaries, fix webpack.config.js

Signed-off-by: Slach <ae46656af8c9fc9089a009f1396672b4274ee5cb@gmail.com>

Vertamedia/clickhouse-grafana,Vertamedia/clickhouse-grafana,Vertamedia/clickhouse-grafana,Vertamedia/clickhouse-grafana,Vertamedia/clickhouse-grafana