build: standardise XML and Maven POM layout

.editorconfig

@@ -0,0 +1,8 @@
+# Shared TFMC XML formatting; see Docs/POM-CONVENTIONS.md.
+[*.xml]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true

pom.xml

@@ -1,25 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>net.tfminecraft</groupId>
     <artifactId>pointshop</artifactId>
     <version>1.1.0</version>
 
     <properties>
-        <tlibs.version>1.1.1</tlibs.version>
         <maven.compiler.release>21</maven.compiler.release>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <tlibs.version>1.1.1</tlibs.version>
     </properties>
 
-    <repositories>
-        <repository>
-            <id>spigot-snapshots</id>
-            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
-        </repository>
-    </repositories>
-
     <dependencies>
         <dependency>
             <groupId>com.google.guava</groupId>
@@ -48,7 +42,10 @@
             <scope>provided</scope>
             <exclusions>
                 <!-- The server supplies TLibs and its integrations. -->
-                <exclusion><groupId>*</groupId><artifactId>*</artifactId></exclusion>
+                <exclusion>
+                    <groupId>*</groupId>
+                    <artifactId>*</artifactId>
+                </exclusion>
             </exclusions>
         </dependency>
         <dependency>
@@ -59,17 +56,28 @@
         </dependency>
     </dependencies>
 
+    <repositories>
+        <repository>
+            <id>spigot-snapshots</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
+    </repositories>
+
     <build>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
                 <filtering>true</filtering>
-                <includes><include>plugin.yml</include></includes>
+                <includes>
+                    <include>plugin.yml</include>
+                </includes>
             </resource>
             <resource>
                 <directory>src/main/resources</directory>
                 <filtering>false</filtering>
-                <excludes><exclude>plugin.yml</exclude></excludes>
+                <excludes>
+                    <exclude>plugin.yml</exclude>
+                </excludes>
             </resource>
         </resources>
         <plugins>
@@ -80,5 +88,4 @@
             </plugin>
         </plugins>
     </build>
-
-</project>
+</project>