[Stable] Ver 2.1.2b Optimized loading of characters and items

[h2]Common in both Studio/Room[/h2]
[h3]Changes[/h3]

You must now link with Twitter through the web.
- You can configure the Twitter integration feature from the [SNS Ingetration] in the settings screen.
- Click on [Connect] to open the integration page on the web.
- You need to be connected with THE SEED ONLINE to use the SNS integration feature.

[h3]Bug fixes[/h3]

Fixed the issue where a mesh set to FirstPersonOnly in VRMFirstPerson is being shown to third person.

[h2]Studio[/h2]
[h3]Changes[/h3]

You can now hear the test sound when changing a volume for individual VCI from the context menu.

[h3]Bug fixes[/h3]

Fixed the issue where the laser is rendered on the ground when you spawned a laser pointer.
Fixed the issue where blank space was shown when there is no item in the ring menu.

[h2]Room[/h2]
[h3]New features[/h3]

Added an "analog input" option which will change your walk speed gradually depending on the tilt of the stick/pad.
- You can change this in the ring menu, [System] > [Control] > [Analog Input] > [Disable/Enable].

[h3]Changes[/h3]

Adjusted the download and extraction process of VCI.
Reduced the load time when entering a room.
When a sync variable exceeds 16KiB and overflows, the debug console for the VCI will now show you that such error is occurring.
Online friends playing different versions will no longer be listed on the online friend list.
Walk animation will be disabled when you have trackers on both feet.
Visibility of the friend notification HUD has been improved.
[Room Info] > [Tidy Up All] button has been added.
- This button will delete all items and link objects in the room that you have the delete permission for.
- It is useful when you want to delete all items and link objects in the default tutorial room and create your room from the ground up.
Temporary blackout has been added when transitioning between rooms, studios and the title.
After entering the room, you can no longer go back to the studio while in the loading space.
- This is a temporary workaround to avoid an issue under a specific condition while in the loading space.
Moved the [Accept Requests] and [Check Invitations] buttons to [Friends] in the ring menu.
Timeliness of the notification has been improved.

[h3]Bug fixes[/h3]

Fixed the issue where the room name and the number of users present in the room didn't appear on the link object.
Fixed the issue where the object indicating loading error of a VCI is not being shown in the room.
Fixed the issue where you couldn't delete the link objects with an invalid room key from the context menu.
Fixed the issue where the VCI loading object is rendered black in a certain environment.
Fixed the issue where the friend badge didn't fade out when maneuvering from the user details panel to the published room list.
Fixed the issue where a friend request sometimes persists as an unapproved request even after the friend request has been approved.
Fixed the issue where in the context menu of a VCI/camera, selecting "smooth turn" while the turn type is already set to "smooth" will result in the "snap turn" being selected.

[h2]VCI[/h2]
[h3]Bug fixes[/h3]

Fixed the issue where a vci.state set at the very beginning is not sent to the server.

[h2]WEB[/h2]
[h3]New features[/h3]

Twitter has been added to the service integration.
By integrating with Twitter, you can send a friend request to a friend who has also enabled the Twitter integration.
- You can make your account hidden from the friend search result, from the settings.

[h3]Changes[/h3]