fix(Loading): wc parity issues

[amal-k-joy]

Closes #17925

Fixing parities in Loading component between react and webcomponent. Below props in webcomponents was not matching with what we have in react. So added new props and deprecating the respective ones to match with React

                      React                 Webcomponents

                      active	  ==>       inactive
		      description ==>	    assistiveText
		      small	 ==>	    type	

Changelog

Changed

• packages/web-components/src/components/loading/loading-icon.ts
• packages/web-components/src/components/loading/loading.ts
• packages/web-components/src/components/loading/loading.stories.ts
• packages/web-components/src/components/loading/loading.scss

Testing / Reviewing

Can be verified in storybook controls

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