Update module name to "Google Ads Integration"

Problem/Motivation

Update module name to "Google Ads Integration" or something similar

Since DFP (DoubleClick for Publishers) is the old name for Google Ad Manager (GAM); they are essentially the same platform, with GAM being the unified, evolved version combining DFP's ad serving with AdX (DoubleClick Ad Exchange) for publishers to manage all their ad inventory (direct & programmatic) in one place, while Google Ads (formerly AdWords) is for advertisers to buy ads across Google's network (Search, YouTube, etc.).

Tasks: update module descriptions, info.yml, documentation, etc