player-avatar: glideSpeed and doubleJump in defaults table are not settable properties

## Description

The [locomotion settings section](https://docs.decentraland.org/creator/scenes-sdk7/interactivity/player-avatar#locomotion-settings) includes a "default values for reference" table that lists `glideSpeed` and `doubleJump` alongside the actual settable properties. This is misleading — those two values are internal engine movement parameters and are **not** exposed in the `AvatarLocomotionSettings` SDK component.

The proto definition (`avatar_locomotion_settings.proto`, component ID 1211) only exposes 6 settable fields:

- `walkSpeed`
- `jogSpeed`
- `runSpeed`
- `jumpHeight`
- `runJumpHeight`
- `hardLandingCooldown`

Attempting to use `glideSpeed` or `doubleJump` in code causes an IDE type error.

## Suggested Fix

Remove `glideSpeed` and `doubleJump` from the defaults reference table (or add a clear note that they are internal engine values and cannot be set via the component).

## Affected Page

`creator/sdk7/interactivity/player-avatar.md` — locomotion settings section

Open creator/sdk7/interactivity/player-avatar.md and locate the locomotion settings section and its default-values reference table. Compare the table with the six fields exposed by avatar_locomotion_settings.proto. Done means glideSpeed and doubleJump are removed from the settable-properties table or clearly marked as internal and not configurable through AvatarLocomotionSettings.

Written by the indexing model from the issue text.