Messages On Head

- Added the ability to toggle visibility of messages on heads using the /moh toggle command. - Added the messagesonhead.toggle permission to control who is allowed to use /moh toggle. - Fixed the "Player not found" message in the /moh say <player> command. <img width="500" src="https://github.com/user-attachments/assets/599b9b26-c878-…" />\ Thanks to <b><a href="https://github.com/Carter4242">@Carter4242</a></b> for bringing the initial implementation of this feature.

- Added the ability to hide messages from the sender using the visibleToSender field (by setting it to false) in the configuration:

# Whether a message will be visible to its sender
visibleToSender: true

- Migrated to the 1.21.6 version (starting with this version, the plugin <ins>won't work with versions below</ins>) - Added the ability to configure gaps between messages and above the player's head:

# Distances between messages / above player's head
gapBetweenMessages: 0.3
gapAboveHead: 0.4

<img src="https://github.com/user-attachments/assets/f679a184-f35b-…" height=150 /> <img src="https://github.com/user-attachments/assets/8f0d757c-6fb6-…" height=300 />

- Added entity cleanup on shutdown (i.e., text displays won't be stuck in the air after restart). - Fixed the position issues with text displays.

- Added the ability to configure the rotation behaviour of the text display:

# How a text display can pivot:
# VERTICAL - Can pivot around vertical axis
# HORIZONTAL - Can pivot around horizontal axis
# CENTER - Can pivot around center point
# FIXED - No rotation
pivotAxis: "VERTICAL"

- Fix: Prevented the first message letter from being interpreted as a color code

- Added [PlaceholderAPI](https://www.spigotmc.org/resources/placeholderapi.6245/) support for integration with plugins such as [EZColors](https://www.spigotmc.org/resources/1-8-8-1-21-ezcolors.69… and [ChatColor](https://www.spigotmc.org/resources/chatcolor.22692/):

# You may enable this if you use a plugin for per-player chat color customization (e.g., EZColors, ChatColor etc.)
placeholderApiIntegration: false
# Name of a placeholder that will be put before each text line
colorPlaceholder: "%ezcolors_color%"
# Format for text lines if `placeholderApiIntegration` is true
lineFormat: "&[defaultColor]&[colorPlaceholder][message]"

- Added the messagesonhead.show permission to control who is allowed to have messages on their head.

- Fixed the cleanup behaviour. Now, using the /moh reload, you can remove stuck entities after the server restarts.

Changelog: - Added the minSymbolsForTimer field in config.\ The field determines the minimum amount of symbols in the message needed for the timer to appear.<br> For example, minSymbolsForTimer set to 5: <img height=200 src="https://github.com/user-attachments/assets/30879c8b-86bc-…"/> <img height=200 src="https://github.com/user-attachments/assets/50c04ed1-c5f9-…"/>

Changelog: - Fixed the infinite loop which caused the server to crash. - Fixed large hitboxes for middle entities _(which are of the [AreaEffectCloud](https://jd.papermc.io/paper/1.21.4/org/bukkit/entity/Area… type_) by decreasing their radius property. - Fixed the way messages disappear.