As an editor on the client I want to be warned if I can't make an edit on the repository in order to not waste my time.
**Problem:**
The Item where the statement is coming from might be protected on the repository or the editor might be blocked. In this case we want to tell them that they can't edit the statement they are trying to edit.
We have 3 cases that can happen:
* The item is fully protected
* The item is semi-protected
* The user is blocked on Wikidata
**Screenshots/mockups:**
[[ https://www.figma.com/file/KIkcQ7NjOl8OkQtGWe5duIbW/Client-editing-UI?node-id=1580%3A1 | more details in figma mock ]]
desktop - fully protected
{F31064140}
Desktop - semi protected
{F31064142}
desktop - blocked
{F31064144}
the gray box is the OOUI MessageWidget (type: 'notice')
mobile (old content!! but keeping it in for layouting purposes cause the measurements still apply)
{F30720717}
Missing: mock for when the page is protected and the editor is blocked at the same time
**Links in mocks**
fully protected: $repourl/wiki/Project:Page_protection_policy
administrator(s): $repourl/wiki/Project:Administrators
protected: $repourl/wiki/Project:Page_protection_policy
protection log: $repourl/wiki/Special:ProtectedPages
editing disputes: $repourl/wiki/Project:Edit_warring
discuss this item: link to discussion page of respective item
semi-protected: $repourl/wiki/Project:Page_protection_policy
autoconfirmed/confirmed users: $repourl/wiki/Project:Autoconfirmed_users
log in: link to the client's log in page
create one: link to the client's account creation page (side-note from charlie: not sure about this one since editors might think that this is where they'll need to make the edits to get autoconfirmed but then still won't be able to edit since the auto confirmation happened on the wrong wiki)
**BDD**
GIVEN a protected Item
WHEN a user without the necessary edit rights tries to edit it in the bridge
THEN an error message is shown when opening the bridge
AND the edit can't be performed
GIVEN an editor that is blocked on the repository
WHEN they try to edit in the bridge
THEN an error message is shown when opening the bridge
AND the edit can't be performed
**Acceptance criteria:**
[ ] loading bar is replaced by error message as soon as we know the editor can't edit the statement
[ ] the editability status depends on the Item the statement is coming from (which is not necessarily the one connected to the article via the sitelink)
[ ] These screens do not have a save button