DPL-979 Convert VueX module pacbio/requests to Pinia store

[seenanair]

User story
As Pinia has now become the defacto recommended state management library for Vue 3, we are planning to migrate from VueX to Pinia. As part of clean migration, the conversion is planned module by module from VueX to Pinia.

• Convert pacbio VueX module runs in store/traction/pacbio/requests to Pinia store
  • Convert to a Pinia store with id same as namespace in Vuex
  • Convert state, getters, action
  • Remove mutation
• Convert usage inside components

• Use Options API support of Pinia to maintain the existing code as much as possible

Acceptance criteria
To be considered successful ,the solution must allow replacement of following pacbio Vuex module to Pinia stores

• move setRequests and updateRequests to pacbioRequests Pinia store
• move createRequestPayload to utility function
• move mutations and state to pacbioRequests Pinia store
• remove usage of PacbioSampleFactory and replace with PacbioRequestFactory

Who are the primary contacts for this story
Steve/Seena

Additional context
This story has a non-blocking relationship with:

• DPL-894 Convert VueX modules to Pinia stores #1327

References
[Pinia]
[Migration (https://pinia.vuejs.org/)]
[Migration] (https://pinia.vuejs.org/cookbook/migration-vuex.html)

[seenanair]

@stevieing Added new Pinia story