rename FixedString size to length

Author: elebras1

examples/src/main/java/com/github/elebras1/flecs/examples/components/Label.java

@@ -4,5 +4,5 @@
 import com.github.elebras1.flecs.annotation.FixedString;
 
 @Component
-public record Label(@FixedString(size = 32) String label) {
+public record Label(@FixedString(length = 32) String label) {
 }

examples/src/main/java/com/github/elebras1/flecs/examples/components/Minister.java

@@ -4,5 +4,5 @@
 import com.github.elebras1.flecs.annotation.FixedString;
 
 @Component
-public record Minister(String name, @FixedString(size = 128) String imageFileName, float loyalty, int startDate, int deathDate) {
+public record Minister(String name, @FixedString(length = 128) String imageFileName, float loyalty, int startDate, int deathDate) {
 }

src/main/java/com/github/elebras1/flecs/annotation/FixedString.java

@@ -8,5 +8,5 @@
 @Retention(RetentionPolicy.SOURCE)
 @Target(ElementType.RECORD_COMPONENT)
 public @interface FixedString {
-    int size();
+    int length();
 }

src/main/java/com/github/elebras1/flecs/processor/AbstractGenerator.java

@@ -44,7 +44,7 @@ protected String getGetterMethod(String type) {
     protected int getStringSize(VariableElement field) {
         FixedString annotation = field.getAnnotation(FixedString.class);
         if (annotation != null) {
-            int size = annotation.size();
+            int size = annotation.length();
             if ((size & (size - 1)) != 0) {
                 throw new IllegalArgumentException("Field '" + field.getSimpleName() + "': @FixedString size must be a power of 2. Got: " + size);
             }