Fix bugs

- Add missing `MailchimpPlugin.` prefix to lang() calls.
- Do not subscribe customer if consent is not true.
- Escape output in tabular_helper.php
- Removed testConnection() as unneeded code
- Fix activity count logic
- Whitelist Sort Column Headers for Plugins.php
- Store encrypted API key as base64 instead of raw binary to prevent truncation
- Rollback on batchSave partial failure.
- Remove dead code.
- Disable plugin before uninstalling it.
- Fix getPluginSettings() internal key leak
- Add action column to plugin headers function
- Automatically add grant to all admins in case person_id 1 is not active

Signed-off-by: objec <objecttothis@gmail.com>

app/Database/Migrations/sqlscripts/3.4.1_PluginConfigTableCreate.sql

@@ -12,5 +12,5 @@ INSERT IGNORE INTO `ospos_modules` (`name_lang_key`, `desc_lang_key`, `sort`, `m
 INSERT IGNORE INTO `ospos_permissions` (`permission_id`, `module_id`) VALUES
    ('plugins', 'plugins');
 
-INSERT IGNORE INTO `ospos_grants` (`permission_id`, `person_id`, `menu_group`) VALUES
-    ('plugins', 1, 'office');
+INSERT IGNORE INTO `ospos_grants` (`permission_id`, `person_id`, `menu_group`)
+SELECT 'plugins', `person_id`, 'office' FROM `ospos_grants` WHERE `permission_id` = 'config';