feat: move all web pkgs into a single npm pkg @lion/ui

[daKmoR]

What I did

1. With export maps we can get the same runtime cost by using multiple entrypoints as with separate packages - It however simplifies usage and maintenance a LOT.
2. This introduces a single @lion/ui package containing all web components.
3. @lion/ajax and singleton-manager will remain separate packages

PS: this also requires changes to our TS setup which will follow next...

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Latest commit: 49b1921

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[daKmoR]

make core.js only export our own code... e.g. remove those 2 lines

👉 ing-web/exports/core.js

- export { ScopedElementsMixin } from '@open-wc/scoped-elements';
- export { dedupeMixin } from '@open-wc/dedupe-mixin';

and then adjust all imports to go to the external package directly

- import { ScopedElementsMixin } from '@lion/components/core.js';
+ import { ScopedElementsMixin } from '@open-wc/scoped-elements';

- import { dedupeMixin } from '@lion/components/core.js';
+ import { dedupeMixin } from '@open-wc/dedupe-mixin';

[gerjanvangeest]

Shouldn't we remove all open changesets?

And have 1 changeset for this change?

[daKmoR]

yeah, but let's do this when we are actually closer to a release