perf: 80% faster `doc.get` for fields with `None` as value

perf: reduce query when calling `get_doc` with filters

test(fix): Cypress test form.js

perf: ~90% faster `get_cached_value` from Redis cache

fix: Use github.com as fallback when Github API rate limit is hit

perf: improve Custom Field insertion time

fix(`get_value`): make `as_dict` work for list-style filters

feat: discussions component redesign

- Jobs/Worker view
- Filter by Queue Timeout and Job Status
- Toggle Auto Refresh
- Consistent theme

* Refactored raw SQLs and outdated APIs to use newer DB + QB APIs
* Simplified Python & Query logic
* Added type hints
* Styled with Black

perf: dont cache `assets_json` in Redis for `developer_mode`

* Deprecate filter_str in whitelisted get_monthly_goal_graph_data API;
  use filter Dict instead
* Simplify logic
* Use qb notation instead of raw SQLs
* Raise 403 if user does not have access to document

Note: This includes a security fix

fix: incorrect logic for `parenttype` parameter in `get_all_children`

perf: cache parsed `assets_json` instead of string

Via https://github.com/frappe/frappe/pull/16107