v2.0.0: new auto-init, CSS export, smaller bundle

Added

• BREAKING: new (auto-)init behaviour, inspired by petite-vue

  • require, import, or use <script> to include Shareon without
    initialization

  • use exported initializeShareon function in Node to initialize Shareon

  • use init attribute in script to initialize Shareon in-browser

    <script src="path/to/shareon.js" init>

• CSS export for use in Webpack/Rollup/etc. (#35)

  import "shareon/css";

  require("shareon/css");

Changed

• BREAKING: default version of the package doesn't auto-initialize buttons
• BREAKING: instead of default export, named exports are now used. If IIFE
  is used, the global object's name is now Shareon, and it has one init()
  method
• updated logos and colours for some social networks
• removed mixins, defining the code/styles directly in the files
• use Vite for building, reducing the devDependencies
  tree and build times drastically
  • BREAKING: newly built files offer worse browser support
• change code style to Prettier

Removed

• BREAKING: noinit version of the package is removed