[client]: remove redundant code

[client]: add pathfinding helper visualization for debugging purposes

[client]: add types for PathfindingHelper class

[client]: add animation transitions

[client]: add reconnection options to socket constructor

[client]: remove redundant console log

[client]: add rotation animation

[client]: update root Svelte component logic

[client]: add types for libs without typings

[client]: implement LocalCharacter class

[client]: implement Character class

[client]: replace assetStore Svelte store with singleton