Generic component for feature title/subtitle header

[pjuaristi-ikerlan]

Description

Features have different format titles and subtitles. It will be nice to have a general component for titles to use in every feature for reusability and also for user experience, not to have different format headers. The one used could be the header created by @jalvaro-lks for"Policy managent" (yet to merge in main).

Acceptance Criteria

• Generic component for titles/subtitiles