Decision about the rules for community names

[kingalg]

To be done:

• final decision about the rules that the community creation should follow,
• implementing the decision in the code (including a warning message which is displayed to the user in the community creation window),
• make sure that it's reflected in tests.

Current state:

• In the test description, we don't allow users to use capital letters. All capital letters in the community creation view are changed to lowercase. Then, in the left side panel, every first letter of the community name or the first letter after the space is changed to uppercase. Any other capital letter is changed to lowercase.

[kingalg]

Additional info I confirmed about Slack:

• When you create a Slack workspace (team) name, Slack automatically converts it to lowercase for use in the URL, even if you use capital letters during setup.
• BUT the display name within the Slack app will show any lower and capital letters exactly how the user chooses to write them when creating a workspace.

[adrastaea]

Just a note that you are using "channel" names throughout this issue, but this issue is about the community name. Channel (i.e. "#general" ) names are consistently lowercased.

[kingalg]

@adrastaea thanks! You are absolutely right, and I fixed it. No idea why I did it, but good catch!