Remove typescript enums in favor of plain JS/TS solution (#4254)

This gets rid of enums for two reasons

- TypeScript does not really compile them size efficiently, see
[here](https://www.runpkg.com/?graphql@16.8.1/language/kinds.mjs)
  - Raw size kinds.js before: 2800bytes
  - Raw size kinds.js after: 2200 bytes
- It's not kind to plains strings as seen in
#3356

Resolves #3356

This does not intend to fix the tree-shaking issue as seen in
#4253, for that we'd need to
fully normalize these exports and sacrifice the DX of the namespaces. I
do think that it becomes easier as plain strings will be "easier"
compared to before so if you're not doing comparisons you can opt out of
the `Kind` namespace.

<details>
  <summary>See new output</summary>

```js
/**
 * The set of allowed kind values for AST nodes.
 */
exports.Kind = {
    /** Name */
    NAME: 'Name',
    /** Document */
    DOCUMENT: 'Document',
    OPERATION_DEFINITION: 'OperationDefinition',
    VARIABLE_DEFINITION: 'VariableDefinition',
    SELECTION_SET: 'SelectionSet',
    FIELD: 'Field',
    ARGUMENT: 'Argument',
    FRAGMENT_ARGUMENT: 'FragmentArgument',
    /** Fragments */
    FRAGMENT_SPREAD: 'FragmentSpread',
    INLINE_FRAGMENT: 'InlineFragment',
    FRAGMENT_DEFINITION: 'FragmentDefinition',
    /** Values */
    VARIABLE: 'Variable',
    INT: 'IntValue',
    FLOAT: 'FloatValue',
    STRING: 'StringValue',
    BOOLEAN: 'BooleanValue',
    NULL: 'NullValue',
    ENUM: 'EnumValue',
    LIST: 'ListValue',
    OBJECT: 'ObjectValue',
    OBJECT_FIELD: 'ObjectField',
    /** Directives */
    DIRECTIVE: 'Directive',
    /** Types */
    NAMED_TYPE: 'NamedType',
    LIST_TYPE: 'ListType',
    NON_NULL_TYPE: 'NonNullType',
    /** Type System Definitions */
    SCHEMA_DEFINITION: 'SchemaDefinition',
    OPERATION_TYPE_DEFINITION: 'OperationTypeDefinition',
    /** Type Definitions */
    SCALAR_TYPE_DEFINITION: 'ScalarTypeDefinition',
    OBJECT_TYPE_DEFINITION: 'ObjectTypeDefinition',
    FIELD_DEFINITION: 'FieldDefinition',
    INPUT_VALUE_DEFINITION: 'InputValueDefinition',
    INTERFACE_TYPE_DEFINITION: 'InterfaceTypeDefinition',
    UNION_TYPE_DEFINITION: 'UnionTypeDefinition',
    ENUM_TYPE_DEFINITION: 'EnumTypeDefinition',
    ENUM_VALUE_DEFINITION: 'EnumValueDefinition',
    INPUT_OBJECT_TYPE_DEFINITION: 'InputObjectTypeDefinition',
    /** Directive Definitions */
    DIRECTIVE_DEFINITION: 'DirectiveDefinition',
    /** Type System Extensions */
    SCHEMA_EXTENSION: 'SchemaExtension',
    /** Type Extensions */
    SCALAR_TYPE_EXTENSION: 'ScalarTypeExtension',
    OBJECT_TYPE_EXTENSION: 'ObjectTypeExtension',
    INTERFACE_TYPE_EXTENSION: 'InterfaceTypeExtension',
    UNION_TYPE_EXTENSION: 'UnionTypeExtension',
    ENUM_TYPE_EXTENSION: 'EnumTypeExtension',
    INPUT_OBJECT_TYPE_EXTENSION: 'InputObjectTypeExtension',
};
```

</details>

Currently seeing whether we should disable the redeclare lint-rule and
whether there is a better way to type our `nodeKinds`

Author: JoviDeCroock