Improve Layout Paragraphs component modal

[BrianGilbert]

Is your feature request related to a problem? Please describe.
As an author I want a better user experience that makes it easier to select my desired paragraph

Describe the solution you'd like

• Use 'Paragraphs (stable)' modal from Paragraphs for Layout Paragraphs 'Choose a component' modal

Describe alternatives you've considered

Additional context