Add explanation to contributions block on journey dashboard

[SimoneZaza]

Description

As a member of private Subspaces, I can see the activity in them on the Space dashboard. It is unclear to me that others, who are not a member, cannot see this activity. This worries me since the things I share in that private Subspace are actually private.

Add help icon in recent contributions block next to title explaining what is displayed. (screenshot shows icon in the wrong place, since here the switch is located nowadays)

Acceptance criteria

• [ ] Info icon top right of Contributions block
• [ ] Tooltip with text (translatable):

The activity shown in this section is based on the content that you have access to. Contributions in private Subspaces are only visible for members of those Subspaces.

• [ ] Above in recent contributions blocks on Space and Challenge levels

Additional Context

[hero101]

This activity is not based on membership. All members of the Space are able to see the entries. @techsmyth

[SimoneZaza]

@hero101 but not the entries of the private challenges, right?

[hero101]

@SimoneZaza Yes. I have verified that a user not a member of a private challenge does not see its activity. Non-members can see the activity of public challenges.

[SimoneZaza]

@hero101 great, I've updated the text for the tooltip