v0.3.0 (#24)

* Added „Personal Quests”, a feature that allows GM to show any Quest to only specific player(s).
* Added Entity linking to Tasks (for example `@Actor[Vash]` or `@Item[Cursed Sword]`).
    * Fixed Entity linking in Description for players.
* Added „Available Tab” as an optional setting. Redone actions so they make more sense in their context.
* Added option allowing GM to hide any Task and Reward from players.
* Added "Abstract" type Rewards, which are not "Item" entities, are not draggable, but can have any name and image applied to them.
* Added optional Settings option that when checked, allows Players to drag Rewards onto their Actor sheets. (disabled by default)
* Added "Show Players" button for Quest Details, that will force open Quests Details for all players that have permission to see it.
* Hidden journal folder for quest data even for GM. Can be turned on back in settings.
* Changed some module settings to be client-side (centering titles, way of rendering bookmarks).
* Styling adjustments, including:
    * Fixed floating checkmarks for tasks when tasks overflow box.
    * Added visible indication of each Task to help players distinguish separate tasks.
    * Changed the way Quest Log is scrolling with many quests.
    * Added scrolling to Tasks and Rewards, because people are crazy.
* Created API at `game.quests` for use in Macros and Modules.
* Using API, allowed to drag&drop Quests from Quest Log onto Hotbar to create an "Open Quest" macro.
* Provided code comment blocks for most Functions. Not yet a Documentation, but could help those who peek at my module to learn.