VTag: Use computed property for router link

[igeligel]

<router-link
  :to="{ name: 'home-tag', params: { tag: name } }"
  :class="className"
>

Ideally, { name: 'home-tag', params: { tag: name } } should be a computed property and then used like:

<router-link
  :to="homeLink"
  :class="className"
>

Related resources:

• https://vuejs.org/v2/guide/computed.html

[kylerits]

I can tackle this if you don't mind.

[kylerits]

PR at #224

[andriyfm]

Use computed property for router link #231

[khuongphp]

@andriyfm this PR got error that name is null
We should accept pull request of @kylerits . That PR fix my error