Purpose: -------- Currently, a crash occurs if a portal user tries to open the colorpicker (for example in project_sharing, or in knowledge portal introduced in 16.3 [1]). This commit fixes this by adding the group `base.group_portal` to the groups of the colopicker template. Task-3429053 [1] https://github.com/odoo/enterprise/commit/1badfeae8d5c93c8bba8dafd56f94f6433888590 closes odoo/odoo#129274 X-original-commit: 94e3211aa84feab28ac03902d9af849967ab125c Signed-off-by: Warnon Aurélien (awa) <awa@odoo.com>