feat: display items by group

[0x2E]

Fix #85

[Copilot]

Pull Request Overview

This PR implements a new group filter feature for displaying items by group. Key changes include:

• Adding a new GroupID query parameter in the request and item filter structures.
• Updating the database query to join the feeds table for group filtering.
• Enhancing the frontend to incorporate the new group filtering in the route and API call.

Reviewed Changes

Copilot reviewed 5 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
server/item_form.go	Added GroupID field to the request struct.
server/item.go	Passed the GroupID to the item filter in the List method.
repo/item.go	Updated the query logic to join the feeds table and filter items by group.
frontend/src/routes/(authed)/groups/[id]/+page.ts	Integrated group filtering in the page load function.
frontend/src/lib/api/item.ts	Updated the listItems response type to include the content field as per the new Item type.

Files not reviewed (4)

• frontend/src/lib/components/ItemList.svelte: Language not supported
• frontend/src/lib/components/Pagination.svelte: Language not supported
• frontend/src/lib/components/Sidebar.svelte: Language not supported
• frontend/src/routes/(authed)/groups/[id]/+page.svelte: Language not supported

[Copilot]

The explicit join on the feeds table is introduced to support the group filtering, but the subsequent use of Preload('Feed') may result in redundant or unexpected data loading. Consider reviewing whether both the join and preload are necessary, or if they can be consolidated to ensure efficient querying.

Suggested change

	db := i.db.Model(&model.Item{}).Joins("JOIN feeds ON feeds.id = items.feed_id")
	db := i.db.Model(&model.Item{}).Joins("JOIN feeds ON feeds.id = items.feed_id").
	Select("items.*, feeds.id AS feed__id, feeds.name AS feed__name, feeds.group_id AS feed__group_id")