feat: add support for hex colour codes on spigot

* Update Lang.java

https://www.spigotmc.org/threads/chatcolor-implementation-%C2%A7x-x.505831/

* Update Lang Files

* Add version requirement

core/src/main/java/com/sekwah/advancedportals/core/util/Lang.java

@@ -43,7 +43,7 @@ public class Lang {
         if (instance.languageMap.containsKey(s)) {
             String translation = instance.languageMap.get(s);
             // noinspection ALL (not sure what the specific warning is for escaped unicode)
-            translation = translation.replaceAll("&([0-9a-frk-o])", "\u00A7$1");
+            translation = translation.replaceAll("&([0-9a-frk-ox])", "\u00A7$1");
             return translation;
         } else {
             return s;

lang/src/main/resources/lang/de_DE.lang

@@ -29,6 +29,7 @@
 # &n   Underline
 # &o   Italic
 # &r   Reset
+# &x   Hex Color (#aa5f10 represented by &x&a&a&5&f&1&0) - Spigot 1.16.1+
 #
 # Also note that some debug messages may not be listed here for translation.
 #

lang/src/main/resources/lang/en_GB.lang

@@ -29,6 +29,7 @@
 # &n   Underline
 # &o   Italic
 # &r   Reset
+# &x   Hex Color (#aa5f10 represented by &x&a&a&5&f&1&0) - Spigot 1.16.1+
 #
 # Some debug messages may not be listed here for translation.
 

lang/src/main/resources/lang/fr_FR.lang

@@ -29,6 +29,7 @@
 # &n   Underline
 # &o   Italic
 # &r   Reset
+# &x   Hex Color (#aa5f10 represented by &x&a&a&5&f&1&0) - Spigot 1.16.1+
 #
 # Some debug messages may not be listed here for translation.
 

lang/src/main/resources/lang/hu_HU.lang

@@ -29,6 +29,7 @@
 # &n   Underline
 # &o   Italic
 # &r   Reset
+# &x   Hex Color (#aa5f10 represented by &x&a&a&5&f&1&0) - Spigot 1.16.1+
 #
 # Vegye figyelembe, hogy néhány hibaelhárító üzenet itt nem szerepel a fordításban.
 #