refactor(ALL): bump minecraft version to 1.21.5

trimmed unused feature: /gamerule CustomEntity API, Custom Item API

We'll use Polymer for replacement in the future.
Tests needed.

gradle.properties

@@ -1,19 +1,11 @@
 # Done to increase the memory available to gradle.
-org.gradle.jvmargs=-Xmx1G
-
-# Fabric Properties
-	# check these on https://modmuss50.me/fabric.html
-	minecraft_version=1.21
-	yarn_mappings=1.21+build.7
-	loader_version=0.15.11
-
+org.gradle.jvmargs=-Xmx4G
+minecraft_version=1.21.5
+yarn_mappings=1.21.5+build.1
+loader_version=0.16.10
+# Fabric API
+fabric_version=0.119.5+1.21.5
 # Mod Properties
-	mod_version = 1.0.0
-	maven_group = io.ib67
-	archives_base_name = sfcraft
-
-# Dependencies
-	# check this on https://modmuss50.me/fabric.html
-	fabric_version=0.100.4+1.21
-	owo_version=0.12.10+1.21
-
+mod_version=1.0.0
+maven_group=io.ib67
+archives_base_name=sfcraft