explorer fetch function refactored

[peratik]

Changes

• explorer fetch function refactored

Notion's card

Checklist

• I've performed a self-review, followed all rules from Frontend style guide
• If I make changes to another person's module, I've asked how to use it or request a review
• I've updated the documentation, if necessary (Keyboard shortcuts, Account settings)
• I've checked night mode, mobile & tablet screens (if have changes in UI)
• I've added tests (if necessary)

Screenshots or GIFs

[DmitriVanGuard]

As @Woafflation described, separate insights' query was added as hotfix to support insights in the feed. Now it is not required, since it's natively supported by the api.

app/src/pages/Explorer/Category/ExplorerCategory.svelte

Lines 91 to 104 in b5b94db

	queryExplorerItems({
	types: [EntityKeys.INSIGHT],
	page: insightsPage,
	})
	.then((res) => {
	if (activeMenu === MenuItem.TRENDING) {
	insightsPages = res.pages
	insights = insightsPage === 1 ? res.items : insights.concat(res.items)
	}
	})
	.catch(() => notifyError({ user: $currentUser }))
	.finally(() => {
	queryExplorerItems({
	types: getDisplayingType(displayingTypes),

The inisght specific query function can be removed (LOC 82)

[DmitriVanGuard]

I will merge this PR a little bit later