chore(i18n): Improvements in automation and macros (#11231)

# Pull Request Template

## Description

This PR includes,
1. **Sort Accounts List** – Orders the accounts list alphabetically for
better organization.
2. **Add Missing Translations in Automation** – Includes missing
translations for actions, events, and conditions dropdown.
3. **Fix Missing Translation in Macros** – Adds missing translations in
the macros action select dropdown.
4. Translate "Automation System" Username – Ensures the "Automation
System" username is properly translated.

Fixes: https://linear.app/chatwoot/issue/CW-4198/issues-[converso]

## Type of change

- [x] Bug fix (non-breaking change which fixes an issue)


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

config/locales/en.yml

@@ -294,3 +294,5 @@ en:
     seconds:
       one: '%{count} second'
       other: '%{count} seconds'
+  automation:
+    system_name: 'Automation System'