BASH-14 Set default server/team in settings

[csduarte]

Description
This PR allows for a defaultTeam to be defined in the override.json file (src/common/config/override.json). When this value is defined and the config file does not contain any teams in the team’s array, the team defined in the defaultTeam property will be added to the team's array in the config.

• read and understood our Contributing Guidelines
• completed Mattermost Contributor Agreement
• executed npm run lint:js for proper code formatting

Test Cases
Add override values like this:

// Exampleoverride.js
{
  "1": {
    "defaultTeam": {
       “name”: “Test Team”,
       “url”: “https://test.team.com” 
    }
  }
}

Remove the application support folder by running rm -rf /Users/{yourusername}/Library/Application Support/Mattermost

When the application starts the login for the defaultTeam will be shown.

notes
includes bash-20

[jasonblais]

@yuya-oc Same as in #587, can you help share a link for the test build from circle-ci? I'll test this out.

[yuya-oc]

https://circleci.com/gh/mattermost/desktop/1023#artifacts However at this time, you would not see any changes if the app is correctly implemented.

[jasonblais]

Hm, that's correct. The settings would have to be specified before building the app. You enable/disable the display of URL hover before building and dist.

@csduarte @dmeza Wondering your thoughts if this should be a setting controlled by the Mattermost server? I would see a benefit of having a default team at server-level.

[dmeza]

@jasonblais @csduarte the idea of this setting is to already have a default server and not even have to enter it like in this ticket BASH-18 Add configs to show/hide server management and multiteam settings: #600
I think you need the desktop specific changes because it sends you to add a server if one is not configured. The process to check anything server side would mean that you're already connected to a specific server.

[jasonblais]

@dmeza aah, got it. I was thinking of teams as "Mattermost teams" not "servers".

Can you pre-configure more than one server?

[dmeza]

@jasonblais @csduarte: Yes, if you add more teams directly via the config.json file you would see multiple tabs. If no teams are configured and if defaultTeam is properly configured then you would connect to that specific server directly by default.

[yuya-oc]

Due to merging of #586, please rebase the branch.

[jasonblais]

@yuya-oc Once rebased, would you be able to help with a test build where defaultTeam is set and I'll give this one a try?

[dmeza]

@yuya-oc rebased and tested.

[yuya-oc]

@jasonblais Added https://example.com as the defaultTeam. https://circleci.com/gh/yuya-oc/desktop/420#artifacts

As described in the first comment, please remove AppData\Roadming\Mattermost\config.json before starting the app.

[jasonblais]

@yuya-oc Should we consider renaming the term "team" to a "server" to reduce confusion? I searched through the GitHub repo and realized we refer to servers as teams in many places. This is probably because of how multi-team support worked before the team sidebar was introduced a few months ago.

I could do a search and replace of the terms across our files after this PR and #600 are merged.

Let me know your thoughts.

[yuya-oc]

@jasonblais Yeah, we should do that. However, "team" is already used in config.json. So to avoid confusing, I don't think we need to do in v3.8.

[jasonblais]

Tested and works great. Thanks all!

[yuya-oc]

@jasonblais Added a issue to rename variables. #623