Implement generic/reusable filter bar for Analytics features

Currently, Code Review Analytics and VSA already implement the GlFilteredSearch component from gitlab-ui along with some shared/reusable tokens.

However, both features still use their own components for the filter bar which is closely coupled to the Vuex store of the specific feature.

Let's create a shared/reusable filter bar (parent) component that we can easily reuse across our Analytics features.

There's already a rather generic version implemented in !32961 (merged) by @kushalpandya which is worth looking into to see if it fits our needs or can at least be reused to some extent.