Update Loadsmart's vision on the Tech Lead role

[gillianomenezes]

Description

Aligned with the company's current vision for the Tech Lead role and the 2025 Tech team allocation, this pull request updates the documentation to clarify the organizational alignment at the company level.

[ivanlm]

Who’s responsible for the IC’s career growth?
Engineering Managers.
Who’s responsible for guaranteeing projects are on-time?
Engineering Managers.

Regarding the above, while it may fall outside the scope of this review, I believe these responsibilities are more nuanced.

Specifically, when it comes to “responsible” for “career growth” and “guaranteeing projects are on time,” these should ideally be shared responsibilities within the team. In my view, the Engineering Manager (EM) serves more in the role of being “accountable” rather than solely “responsible.”

For career management, especially at the Senior+ levels, the emphasis often shifts more towards the Individual Contributor (IC) taking ownership of their growth, with the EM providing guidance and support. It may be worth discussing whether we want to adopt this level of distinction formally, as assigning sole responsibility to the EM feels somewhat misaligned.