Add download content to installation

[diegodfrf]

Description

There's a new option for installing the manager, DOWNLOAD_CONTENT_AND_DECOMPRESS.

On the initial run of the manager, the vulnerability detection content must be downloaded and processed, which can be time-consuming. Due to this, it is now possible to download a database of the daily updated content, thereby avoiding processing on the initial run. This file is stored in S3.

Note: It's only for the installation, afterward the CTI will be used.

Checks

Docs building

• Compiles without warnings.

Code formatting and web optimization

• Uses three spaces indentation.
• Adds or updates meta descriptions accordingly.
• Updates the redirects.js script if necessary (check this guide).

Writing style

• Uses present tense, active voice, and semi-formal registry.
• Uses short, simple sentences.
• Uses bold for user interface elements, italics for key terms or emphasis, and code font for Bash commands, file names, REST paths, and code.

Update