[Cms] Implement custom Exceptions in Kirby\Form

[distantnative]

• Convert all existing Exceptions to our custom Exceptions:

  • Form/Exceptions
  • [x] Form/Mixins
    • [x] Form/Mixins/Autocomplete.php
    • [x] Form/Mixins/BooleanValue.php
    • [x] Form/Mixins/Converter.php
    • [x] Form/Mixins/Counter.php
    • [x] Form/Mixins/Date.php
    • [x] Form/Mixins/Email.php
    • [x] Form/Mixins/Fields.php
    • [x] Form/Mixins/Help.php
    • [x] Form/Mixins/Icon.php
    • [x] Form/Mixins/Label.php
    • [x] Form/Mixins/Layout.php
    • [x] Form/Mixins/Length.php
    • [x] Form/Mixins/Max.php
    • [x] Form/Mixins/MaxLength.php
    • [x] Form/Mixins/Min.php
    • [x] Form/Mixins/MinLength.php
    • [x] Form/Mixins/MinMax.php
    • [x] Form/Mixins/Model.php
    • [x] Form/Mixins/Multiline.php
    • [x] Form/Mixins/Options.php
    • [x] Form/Mixins/Pattern.php
    • [x] Form/Mixins/Placeholder.php
    • [x] Form/Mixins/Prefix.php
    • [x] Form/Mixins/Required.php
    • [x] Form/Mixins/Separator.php
    • [x] Form/Mixins/Spellcheck.php
    • [x] Form/Mixins/Step.php
    • [x] Form/Mixins/Text.php
    • [x] Form/Mixins/Time.php
    • [x] Form/Mixins/Url.php
    • [x] Form/Mixins/Value.php
  • [x] Form/CheckboxesField.php
  • [x] Form/CheckboxField.php
  • [x] Form/Component.php
  • [x] Form/DateField.php
  • [x] Form/DateTimeField.php
  • [x] Form/EmailField.php
  • [x] Form/Field.php
  • [x] Form/Fields.php
  • [x] Form/Form.php
  • [x] Form/HeadlineField.php
  • [x] Form/HiddenField.php
  • [x] Form/InfoField.php
  • [x] Form/LineField.php
  • [x] Form/NumberField.php
  • [x] Form/OptionsApi.php
  • [x] Form/OptionsQuery.php
  • [x] Form/RadioField.php
  • [x] Form/RangeField.php
  • [x] Form/SelectField.php
  • [x] Form/StructureField.php
  • [x] Form/TagsField.php
  • [x] Form/TelField.php
  • [x] Form/TextareaField.php
  • [x] Form/TextField.php
  • [x] Form/TimeField.php
  • [x] Form/ToggleField.php
  • [x] Form/UrlField.php
  • [x] Form/UserField.php

• [x] Replace Kirby\Form\Exceptions

[bastianallgeier]

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