VC Store - Add/Invite VCs feature from the Space -> Community (#7295)

* Tech spec
* VC invite button in community's VC block (#7294)
* VC Add/Invite Functionality and UI from the Space -> Community  (#7306)
* Empty message;

docs/features/vcStore.md

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+### Technical Documentation for Implementing Virtual Contributors Store v1
+
+#### Overview
+
+This document outlines the technical plan for implementation of the Invite VCs dialog a.k.a. 'VC Store' - [#7256](https://github.com/alkem-io/client-web/issues/7256). Ideally, the functionality should be reusable for different contributor types (User, Organization, VC) and can be placed in various contexts.
+
+#### Components and Areas Affected
+
+1. **ContributorCard Component** (Existing): A reusable component for displaying contributors. Already available the hover card with details (TBD).
+2. **ContributorList Component**: A component to display a list of contributors using the `ContributorCard` component.
+3. **ContributorDetailsOverlay Component** - A reusable component for displaying the details of a contributor plus functionality to invite (similar to the templates' details).
+4. **InviteContributorsDialog Component**: A dialog component to display lists of contributors. This one would have specifics related to the ability and availability of adding contributors under an Account.
+5. **VirtualContributorsBlock Component** (Existing): The main component that integrates the `InviteContributorsDialog`.
+6. **useContributors Hook**: A custom hook to handle the business logic for fetching and managing contributors. The hook should provide the available data based on the context (space/account/community) and the methods for sending an invite or adding to a community.
+   Note that some logic is already present in the `useCommunityAdmin`.