Load templates from files

[infacc]

Load ui-templates from JSON files on startup. Files/folders need to be set via the UI_TEMPLATE_PATHS environment variable. Templates are added if no template with the same name exists.

Example JSON file

```json { "name": "test template", "description": "test template", "tags": [ "test" ], "tabs": [ { "name": "test tab", "description": "test tab", "sort_key": 0, "location": "workspace", "filter": { "or": [ { "name": "hello-world" }, { "type": "dataloader" } ] } }, { "name": "test tab 2", "description": "test tab 2", "sort_key": 1, "location": "workspace", "filter": { "or": [ { "name": "hello-world" }, { "type": "visualization" } ] } } ] } ```