Release Notes for 498

This is a feature request to add Group Animations to toolbox Creations tab.

Studio's two step verification process will be done through a pop-up browser webview.

New Squash property to particles for non-uniform particle stretching, curve controlled for bouncy effects.

A new Brightness property for ParticleEmitter, Trail, and Beamthat allows boosting the diffuse color when theirLightInfluence` is less than one.

Luau now implements table.freeze(t), which makes the table read-only and prohibits all further modifications, and table.isfrozen(t) which allows to check this status. Note that freezing is shallow - developers are expected to implement recursive freezing if they need a deep freeze.

Clouds Phase 2: improved lighting.

Fixed a minor bug in TorsionSpring's currentAngle property when attachments have the same location and direction.

Fix the behavior of Alt + Click in Physical Dragger mode: The physical draggers will once again select individual parts by default and select models when Alt is held.

Fixed bug where command bar visibility could not be toggled at a breakpoint.

Refactor properties widget to use submitTask task.

Fixed a bug that Save to Roblox Key bind doesn't work when initially open a published place.

Addressed clouds cosmetic glitch with some Android mobile devices when the device is at a particular physically orientation (e.g. portrait vs landscape).