HTMLdoc v1.7.0

This release fixes a number of bugs and make more use of type hints and docblocks for improved ease of development and stability:

• Added @property tags for htmldoc::__get() and htmldoc::__set()
• Updated htmldoc::offsetSet() to assume that there is always an index
• comment::minify() now checks that there is content
• custom::__construct() now check that $tagName is not null
• Tightened properties in tag
• Fixed bug in tag::append() where clones were not spliced correctly
• tag::getIndex() now check that the parent is not null
• Fixed some typing issues in tag::minify()
• Fixed return value issue in tag::attr()
• Fixed some potential typing errors
• Fixed issue in tag::minify() where the parent was not checked for null
• Updated some incorrect types in phpDoc tags
• Moved code that parses CSS selectors into its own class
• Updated htmldoc::find() to use the new class
• Updated htmldoc::minify() to move the code that sorts attributes into its own method
• Updated htmldoc::open(), htmldoc::getCharsetFromHtml(), and htmldoc::minify() to reduce cognitive complexity
• Updated htmldoc::save() to return the compiled code instead of true if saved, as it returns the code if no file is specified
• Updated tests
• Fixed bug in htmldoc::offsetGet() and htmldoc::current() where it returned the child object instead of a new htmldoc object containing the child node
• Updated signature of ArrayAccess methods to match the parent
• Fixed PHP 7.4 compatibility issue where the type hint mixed was not introduced until PHP 8
• Added #[\ReturnTypeWillChange] hint to htmldoc::offsetGet() and htmldoc::__get()