OAS spec incorrect for validation_plugin_list

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Product versie / Product version

78b2a74

Omschrijf het probleem / Describe the bug

It says it filters on componentType query parameter, but the service actually filters on component_type

The javascript function drops the parameter

open-forms/src/openforms/js/components/formio_builder/plugins.js

Lines 3 to 6 in 04cb89e

	export const getValidatorPlugins = async componentType => {
	const resp = await get('/api/v2/validation/plugins');
	return resp.data;
	};

So it doesn't look used.

Stappen om te reproduceren / Steps to reproduce

1. http://127.0.0.1:8000/api/v2/validation/plugins
   returns all plugins
2. http://127.0.0.1:8000/api/v2/validation/plugins?componentType=textfield
   returns all plugins
3. http://127.0.0.1:8000/api/v2/validation/plugins?component_type=textfield
   returns all plugins

Tasks

• Fix backend code to adhere to API spec
• Add query param to frontend code

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The getValidatorPlugins js function is passed to the form-builder through a context. I haven't checked how it's called there.