Disable spaces creation

[estellecomment]

• mettre l’option par default de voir tous les salons dans home #104
• disable : le bouton de creation de space
• fix bug in element-web : remove the remaining space-creation button : Remove "Add Space" button from RoomListHeader when user cannot create spaces matrix-org/matrix-react-sdk#9129
• à vérifier si c'est necessaire : lors de la création de la room, enlever l’option “rejoindre le salon pour les membres du space” #107

[odelcroi]

Found a path to create a space from an existing space.
EDIT : it is a subspace that is being created, not a new space

go into a space
click on menu

click on "Add existing room"

click on "Adding spaces has moved"

A button displays : "Create a new space"

• Should it be considered as an issue as ? : Remove "Add Space" button in RoomListHeader when user cannot createSpaces matrix-org/matrix-react-sdk#9002

[odelcroi]

• To be considered, Spaces are mentionned in user settings. Not tragic, but annoying as users will not understand what it is about:

1. Settings>Preferences
   

2. Settings>Barre latérale
   

• Spaces are mentionned in room settings also:

1 Room settings>privacy

[jdauphant]

Is only visible in case, you are admin of a room in a space.