refactor(icons): remove unnecessary icons and reuse the icon registration logic in Grid Filtering and QueryBuilder

[teodosiah]

Closes #14604

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[damyanpetev]

Okay, not exactly what I had in mind, but could consider.
First issue with the token approach is it doesn't tree-shake without explicit /*@__PURE__*/ before it (see others in the repo) and thus drags the factory function and the icons collection with the exports from the package, thus making those permanently in the bundle. See the bundle app build warning here:
https://github.com/IgniteUI/igniteui-angular/actions/runs/11162862017/job/31028455568#step:16:63
(just FYI same thing happens w/ just a chip component active).

The other issue with this is that due to this being injected (thus on component init) - these icons will be registered even when not in use, so again might be better as a simpler reusable function.

Also no reason for filteringIcons and registerFilteringSVGIconsFactory to be exported as far as I can tell.

[damyanpetev]

There's also something going on with the extended icons - I get all of them bundled, which makes no sense and there might be an additional issue there as well.

Edit: Yeah, there seems to be an issue with the icons exports as they stand atm.
Even a simple import { contains } from '@igniteui/material-icons-extended'; will pull the entire package it seems:

That's with the Bundle test app that uses the default application builder. Possibly related to angular/angular-cli#26622, though not exactly as everything shakes out fine if the 'bundles' per category are not exported from the main barrel. Still digging.

[damyanpetev]

Okay, seems to be to do with the all export. If split like this:

import {
    contains, doesNotContain, endsWith, equals, greaterThan, greaterThanOrEqual, isAfter, isBefore,
    isEmpty, isFalse, isNull, isNotNull, isTrue, lastMonth, lastYear, lessThan, lessThanOrEqual, nextMonth,
    nextYear, notEmpty, notEqual, selectAll, startsWith, thisMonth, thisYear, today, ungroup, yesterday
} from '@igniteui/material-icons-extended/editor';

import { type IMXIcon } from '@igniteui/material-icons-extended';

Tree-shaking seems to work fine