Implemented function in index to check server error while loading
Implemented function in index to check server error while loading

brainwane/zulip-electron,zulip/zulip-electron,zulip/zulip-electron,brainwane/zulip-electron,brainwane/zulip-electron,zulip/zulip-desktop,zulip/zulip-desktop,zulip/zulip-desktop,zulip/zulip-desktop,zulip/zulip-electron