Why this change?
This commit introduces an experimental `type: objects` theme setting
which will allow theme developers to store a collection of objects as
JSON in the database. Currently, the feature is still in development and
this commit is simply setting up the ground work for us to introduce the
feature in smaller pieces.
What does this change do?
1. Adds a `json_value` column as `jsonb` data type to the `theme_settings` table.
2. Adds a `experimental_objects_type_for_theme_settings` site setting to
determine whether `ThemeSetting` records of with the `objects` data
type can be created.
3. Updates `ThemeSettingsManager` to support read/write access from the
`ThemeSettings#json_value` column.
The message: :signup_not_allowed option to the IP address validator does nothing, because the AllowedIpAddressValidator chooses one of either:
- ip_address.blocked or
- ip_address.max_new_accounts_per_registration_ip
internally. This means that the translation for this was also never used.
This PR removes the ineffectual option and the unused translation. It also moves the translated error messages for blocked and max_new_accounts_per_registration_ip into the correct location so we can pass a symbol to ActiveModel::Errors#add.
There is no actual change in behaviour.
According to the output of this rake task:
`LOAD_PLUGINS=0 bin/rails "site_settings:find_dead"`
which searches for unused site settings, these settings:
```
rate_limit_new_user_create_topic
enable_system_avatars
check_for_new_features
allow_user_api_keys
```
are unused.
With the introduction of the sidebar navigation menu, the design team at
Discourse redesigned the user profile navigation to better coexist with
the sidebar.
This new site setting replaces the
`enable_experimental_sidebar_hamburger` and `enable_sidebar` site
settings as the sidebar feature exits the experimental phase.
Note that we're replacing this without depreciation since the previous
site setting was considered experimental.
Internal Ref: /t/86563
