[$70] Do not make additional calls for project/product templates on project page

[maxceem]

After this issue 2472 is completed we can remove some additional calls for project and product templates on the project page and reuse already loaded data in the Redux Store.

Current Redux Store

{
   projectState: {
      ...
      projectTemlate: {}, // current project's projectTemplate
      productTemplates: [],  // current project's productTemplates
      allProductTemplates: [], // all possbile productTemplates
   },
   templates: {
      projectTemplates: [...]   // all possible projectTemplates
      projectCategories: [...]  // all possible projectTypes
      isLoading: false
   }
}

What we can do:

1. Currently, project page loads one project template assosiated with it to projectState.projectTemplatemaking separate API call. As after previous issue is done we already have all projectTemplates in the store, we can find needed project template by its id. We have to make sure that templates are already loaded in the store at this point, and if not, then call action to load all templates.
   Note: after this we shouldn't have projectState.projectTemplate in the store anymore.

2. On the project page we load projectState.allProductTemplates with ALL product templates for add phase functionality. Also, we load SOME product templates used in the project to projectState.productTemplates. Instead we should get product templates from projectState.allProductTemplates for a project using ids.
   Note: after this we shouldn't have projectState.productTemplates in the store anymore.

3. After previous two steps we still have allProductTemplates in projectState which is not a good place for it. As projectState suppose to keep some concrete project data, but allProductTemplates doesn’t depend on the concrete project. So it's better to move it to thetemplates section of the store and rename to productTemplates.
   Note: after this we shouldn't have projectState.allProductTemplates in store anymore, and have template.productTemplates instead.

After these steps Redux Store should look like this:

{
   projectState: {
      ...
      // don't keep templates data anymore
   },
   templates: {
      // stay as before
      projectTemplates: [...]   // == /v4/projects/metadata -> projectTemplates
      projectCategories: [...]  // == /v4/projects/metadata -> projectTypes
      isLoading: false
      // moved from projectState, before it was allProductTemplates
      productTemplates: [...] // == /v4/projects/metadata -> productTemplates
   }
}

fyi @RishiRajSahu

Aha! Link: https://topcoder.aha.io/features/TCCONNECT-447

[Gauravseta]

@maxceem i wish to work on it. thanks

[maxceem]

@Gauravseta this is not open for pick up yet. This issue depends on the other one #2472. And the one who makes another one will have a priority to pick up this one as he would be familiar with the scope.

As another issue is already taken for now. Please check other issues to pick up.

[arku]

@maxceem The first part of this issue #2472 has been fixed in #2494

I would like to fix this one once #2494 has been reviewed and merged.

[maxceem]

@arun1595 Yes, I'll try to review the other issue during today. So you could pick up this one. Thanks!