Fix an extra reloading when an error page is manually reloaded

[yuya-oc]

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Summary
Fix an extra reloading when an error page is manually reloaded.

This PR cancels the automated reloading when an error page is manually reloaded by Ctrl+R.

Issue link
#573

Test Cases

1. Unplug ethernet cable or disable Wi-Fi to get error page.
2. Start the application.
3. Make sure that the error is NOT ERR_INTERNET_DISCONNECTED (-106).
4. Repair internet connection then press Ctrl+R.
5. Extra reloading should not happen within 30 seconds.

Additional Notes
https://circleci.com/gh/yuya-oc/desktop/327#artifacts

[jasonblais]

Thanks @yuya-oc! I tried testing it but unfortunately get a ERR_INTERNET_DISCONNECTED (-106) error each time..

Are there additional steps involved to ensure I get the (-105) error instead?

[yuya-oc]

Unfortunately I'm not sure. My PC has -105 error because probably there are other virtual Ethernet for VirtualBox.

@S6066 Wondering if you would like to test the app? You can download the latest app from here. https://327-67276967-gh.circle-artifacts.com/0/tmp/circle-artifacts.exAz08v/mattermost-desktop-3.7.0-win64.zip

[Apjue]

@yuya-oc Tested, no automatic reload occured.
(Didn't understand the virtual ethernets problem, I have 2 VMWare "Network Adapters" and it still runs as expected)

[jasonblais]

Maybe Jonathan have your help code review to familiarize yourself with the desktop app codebase?

I'll work on tweaking our review process to match something similar to platform (i.e. PM/test review, dev review, ready to merge)

[yuya-oc]

Thanks @S6066. I'm also not sure why -105 error happens for me. But I'm glad to hear that the problem was fixed for you.