docs: adds sections on resetting a form and interactionState (#2246)

* docs: ✏️ adds section on resetting a form and interactionState

* chore: ran formatting

docs/fundamentals/systems/form/interaction-states.md

@@ -175,3 +175,9 @@ export const feedbackVisibility = () => html`
   ></lion-input-date>
 `;
 ```
+
+## Resetting
+
+In some situations, resetting the interaction state might be desired, e.g., to clear an entire form or a single input field from errors.
+
+In those cases, using the `resetInteractionState` on a field or a form resets its respective interaction state without resetting the modelValue.

docs/fundamentals/systems/form/model-value.md

@@ -33,3 +33,12 @@ For more information about parsing and the Unparseable type, see [Formatting and
   element' (for instance a lion-input) to a top element (for instance lion-form). An example path
   could be [lionForm, lionFieldset, lionInput]
 - `initialize`: whether this is the first time the event is fired (on first render of the FormControl)
+
+### Resetting
+
+Resetting a form can be done by two different methods.
+
+- `resetGroup()`: resets every form field to its initial/prefilled value and interaction state
+- `clearGroup()`: clears every form field, disregarding its initial/prefilled value and interaction state
+
+Both methods do so by calling `reset|resetGroup` or `clear|clearGroup` on each `LionField` found in the form.