Update assignees check to include any writing team and change org sidebar (#18680)

Following the merging of #17811 teams can now have differing write and readonly permissions, however the assignee list will not include teams which have mixed perms.

Further the org sidebar is no longer helpful as it can't describe these mixed permissions situations.

Fix #18572

Signed-off-by: Andrew Thornton <art27@cantab.net>

routers/web/org/teams.go

@@ -311,6 +311,7 @@ func TeamMembers(ctx *context.Context) {
 		ctx.ServerError("GetMembers", err)
 		return
 	}
+	ctx.Data["Units"] = unit_model.Units
 	ctx.HTML(http.StatusOK, tplTeamMembers)
 }
 
@@ -323,6 +324,7 @@ func TeamRepositories(ctx *context.Context) {
 		ctx.ServerError("GetRepositories", err)
 		return
 	}
+	ctx.Data["Units"] = unit_model.Units
 	ctx.HTML(http.StatusOK, tplTeamRepositories)
 }