Move internal packages to an internal folder

For reference: https://go.dev/doc/go1.4#internalpackages

internal/ui/feed_entries_all.go

@@ -0,0 +1,70 @@
+// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package ui // import "miniflux.app/v2/internal/ui"
+
+import (
+	"net/http"
+
+	"miniflux.app/v2/internal/http/request"
+	"miniflux.app/v2/internal/http/response/html"
+	"miniflux.app/v2/internal/http/route"
+	"miniflux.app/v2/internal/model"
+	"miniflux.app/v2/internal/ui/session"
+	"miniflux.app/v2/internal/ui/view"
+)
+
+func (h *handler) showFeedEntriesAllPage(w http.ResponseWriter, r *http.Request) {
+	user, err := h.store.UserByID(request.UserID(r))
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	feedID := request.RouteInt64Param(r, "feedID")
+	feed, err := h.store.FeedByID(user.ID, feedID)
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	if feed == nil {
+		html.NotFound(w, r)
+		return
+	}
+
+	offset := request.QueryIntParam(r, "offset", 0)
+	builder := h.store.NewEntryQueryBuilder(user.ID)
+	builder.WithFeedID(feed.ID)
+	builder.WithoutStatus(model.EntryStatusRemoved)
+	builder.WithSorting(user.EntryOrder, user.EntryDirection)
+	builder.WithOffset(offset)
+	builder.WithLimit(user.EntriesPerPage)
+
+	entries, err := builder.GetEntries()
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	count, err := builder.CountEntries()
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	sess := session.New(h.store, request.SessionID(r))
+	view := view.New(h.tpl, r, sess)
+	view.Set("feed", feed)
+	view.Set("entries", entries)
+	view.Set("total", count)
+	view.Set("pagination", getPagination(route.Path(h.router, "feedEntriesAll", "feedID", feed.ID), count, offset, user.EntriesPerPage))
+	view.Set("menu", "feeds")
+	view.Set("user", user)
+	view.Set("countUnread", h.store.CountUnreadEntries(user.ID))
+	view.Set("countErrorFeeds", h.store.CountUserFeedsWithErrors(user.ID))
+	view.Set("hasSaveEntry", h.store.HasSaveEntry(user.ID))
+	view.Set("showOnlyUnreadEntries", false)
+
+	html.OK(w, r, view.Render("feed_entries"))
+}