Shopify Cart Button Text Update

I need the “Add to Cart” button in my Shopify checkout flow to display new wording across the entire store. Nothing else in the theme should be altered—just the label on that single button wherever it appears (product pages, quick-view pop-ups, mini-cart, and the main cart)... (Budget: $40 - $50 AUD, Jobs: Frontend Development, HTML, JSON, PHP, Shopify, Shopify Development, Shopify Templates, Web Development)