Truncate access review roles with badge list

Long role strings in the access review table broke row layout when
drivers joined many roles into one comma-separated value. Expose
roles as a string array in GraphQL by splitting the stored role at
the API layer, and render the first three roles as badges with a
"+X more" popover for the rest.

Closes ENG-459.

Signed-off-by: Ludovic Vielle <ludovic@probo.com>

pkg/accessreview/drivers/openai.go

@@ -67,7 +67,7 @@ func (d *OpenAIDriver) ListAccounts(ctx context.Context) ([]AccountRecord, error
 			record := AccountRecord{
 				Email:       u.Email,
 				FullName:    u.Name,
-				Role:        openaiRole(u.Role),
+				Roles:       openaiRoles(u.Role),
 				Active:      new(!u.Disabled),
 				IsAdmin:     u.Role == "owner",
 				ExternalID:  u.ID,
@@ -134,13 +134,17 @@ func (d *OpenAIDriver) fetchUsers(ctx context.Context, after string) (*openaiUse
 	return &resp, nil
 }
 
-func openaiRole(role string) string {
+func openaiRoles(role string) []string {
+	if role == "" {
+		return []string{}
+	}
+
 	switch role {
 	case "owner":
-		return "Owner"
+		return []string{"Owner"}
 	case "reader":
-		return "Reader"
+		return []string{"Reader"}
 	default:
-		return "Member"
+		return []string{"Member"}
 	}
 }