fix: parse declaration error

[ycs77]

unplugin-vue-components version: 0.21.0

If using the component like <IMdi:diceD12>, expected generated components.d.ts file is:

declare module '@vue/runtime-core' {
  export interface GlobalComponents {
    ...
    IFaSolidDiceFive: typeof import('~icons/fa-solid/dice-five')['default']
    IHeroiconsOutlineMenuAlt2: typeof import('~icons/heroicons-outline/menu-alt2')['default']
    'IMdi:diceD12': typeof import('~icons/mdi/dice-d12')['default']
    IMdiLightAlarm: typeof import('~icons/mdi-light/alarm')['default']
    ...
  }
}

But the component name has : char, now the actual generated components.d.ts file is:

declare module '@vue/runtime-core' {
  export interface GlobalComponents {
    ...
    IFaSolidDiceFive: typeof import('~icons/fa-solid/dice-five')['default']
    IHeroiconsOutlineMenuAlt2: typeof import('~icons/heroicons-outline/menu-alt2')['default']
    IMdi: diceD12': typeof import('~icons/mdi/dice-d12')['default']
    'IMdi:diceD12': typeof import('~icons/mdi/dice-d12')['default']
    IMdiLightAlarm: typeof import('~icons/mdi-light/alarm')['default']
    ...
  }
}

This PR will resolve the bug.