* Masking Character added, not yet used.
* Setting the masking character can be chained with other extensions.
* Added string extension for masking, and replaced hardcoded asterisks.
* Check if mask is null first.
* Fixed Typo in previous test and added new test for custom masks.
* Added tests for masking with null character
* Added docs and example.
* Adjusted extensions so that Mask is integrated into Secret extension. Updated Exampls and Tests accordingly
* Adding a dark mode
* Adding reference for types to summary pages
* Adding API Reference
* Adding modifiers to methods/fields/etc
* Minimizing files input
* Caching a lot of the output pages
* Cache only for each execution
* Adding API references to existing docs
* Adding social card infrastructure
* Upgrades doc project to .NET 6
* Adds Playwright
* Changes the console to a web project for Playwright
* Adds social card template
* Added blog content
* Parallelized social image processing
* Updating CI to use .NET 6 for docs build
