Version 3.0.0

• New #139: Add loading() method to Img tag (@jacobbudin)
• Chg #135: Raise yiisoft/arrays version to ^2.0 (@vjik)
• Chg #136: Remove Tag::class() and rename Tag::replaceClass() to Tag::class() (@vjik)
• Chg #140: Remove Html::fileInput() and Input::file(), rename Input::fileControl() to Input::file() (@vjik)
• Chg #141: Tag class: remove attributes() method and rename replaceAttributes() to attributes() (@vjik)
• Chg #141: Range class: remove outputAttributes() method and rename replaceOutputAttributes()
  to outputAttributes() (@vjik)
• Chg #141: File class: remove uncheckInputAttributes() method and rename replaceUncheckInputAttributes()
  to uncheckInputAttributes() (@vjik)
• Chg #141: ButtonGroup class: remove buttonAttributes() method and rename replaceButtonAttributes()
  to buttonAttributes() (@vjik)
• Chg #141: CheckboxList: remove individualInputAttributes() and checkboxAttributes() methods,
  rename replaceIndividualInputAttributes() to individualInputAttributes() and replaceCheckboxAttributes()
  to checkboxAttributes() (@vjik)
• Chg #141: RadioList class: remove individualInputAttributes() and radioAttributes() methods,
  rename replaceIndividualInputAttributes() to individualInputAttributes() and replaceRadioAttributes()
  to radioAttributes() (@vjik)
• Enh #133: Raise minimum PHP version to 8.0 and refactor code (@xepozz, @vjik)
• Enh #142: Make NoEncodeStringableInterface extend from Stringable interface (@vjik)
• Enh #143: Minor type hinting improvements (@vjik)
• Bug #143: Fix a typo in the message of exception that thrown on invalid buttons' data in ButtonGroup widget (@vjik)