Strategic Intelligence Market: Webstacks updates About page with new milestones, values, and refined positioning

The About page was significantly revised: the banner changed from a Gong webinar to an ebook download; the tagline removed 'for high-growth B2B tech companies'; the 'Our difference' section was removed; the 'What we believe' section expanded from a list to detailed descriptions; the company timeline was overhauled with new milestones (e.g., 'Built remote-first', 'Focused on B2B tech', 'Webstacks reaches 25/50 employees', 'Web Strategy becomes a formal practice', 'Ongoing website teams evolve', 'Client Management becomes a dedicated function') and some old milestones removed; footer added 'Contact' link; and several client logos updated.