Add state handler implementations and documentation

- Implemented StateHandler class with methods for entering, exiting, and updating states.
- Created TypeStateHandler for handling typing state with appropriate animations and transitions.
- Developed WaitStateHandler for managing idle state with quirk animations.
- Added JSDoc documentation for all new classes and methods.
- Included CSS styles for documentation formatting and syntax highlighting.

docs/scripts/prettify/lang-css.js

@@ -0,0 +1,2 @@
+PR.registerLangHandler(PR.createSimpleLexer([['pln', /^[\t\n\f\r ]+/, null, ' \t\r\n']], [['str', /^"(?:[^\n\f\r"\\]|\\(?:\r\n?|\n|\f)|\\[\S\s])*"/, null], ['str', /^'(?:[^\n\f\r'\\]|\\(?:\r\n?|\n|\f)|\\[\S\s])*'/, null], ['lang-css-str', /^url\(([^"')]*)\)/i], ['kwd', /^(?:url|rgb|!important|@import|@page|@media|@charset|inherit)(?=[^\w-]|$)/i, null], ['lang-css-kw', /^(-?(?:[_a-z]|\\[\da-f]+ ?)(?:[\w-]|\\\\[\da-f]+ ?)*)\s*:/i], ['com', /^\/\*[^*]*\*+(?:[^*/][^*]*\*+)*\//], ['com',
+  /^(?:<\!--|--\>)/], ['lit', /^(?:\d+|\d*\.\d+)(?:%|[a-z]+)?/i], ['lit', /^#[\da-f]{3,6}/i], ['pln', /^-?(?:[_a-z]|\\[\da-f]+ ?)(?:[\w-]|\\\\[\da-f]+ ?)*/i], ['pun', /^[^\s\w"']+/]]), ['css']); PR.registerLangHandler(PR.createSimpleLexer([], [['kwd', /^-?(?:[_a-z]|\\[\da-f]+ ?)(?:[\w-]|\\\\[\da-f]+ ?)*/i]]), ['css-kw']); PR.registerLangHandler(PR.createSimpleLexer([], [['str', /^[^"')]+/]]), ['css-str'])