Fix englandish and some small changes to UUID in PlayerProfile

docs/adr/0001-storage-layer.md

@@ -37,7 +37,7 @@ new storage backends (such as binary storage, SQL, etc.) for things like
 [PlayerProfile](https://github.com/Slimefun/Slimefun4/blob/bbfb9734b9f549d7e82291eff041f9b666a61b63/src/main/java/io/github/thebusybiscuit/slimefun4/api/player/PlayerProfile.java), [BlockStorage](https://github.com/Slimefun/Slimefun4/blob/bbfb9734b9f549d7e82291eff041f9b666a61b63/src/main/java/me/mrCookieSlime/Slimefun/api/BlockStorage.java), etc.
 
 We also want to be generally more efficient in the way we save and load data.
-Today, we can to load way more than is required.
+Today, we load way more than is required.
 We can improve memory usage by only loading what we need, when we need it.
 
 We will do this incrementally and at first, in an experimental context.
@@ -66,7 +66,7 @@ e.g. SQL may not support [`BlockStorage`](https://github.com/Slimefun/Slimefun4/
 
 ## Addons
 
-The goal is that Addons will be able to use implement new storage backends
+The goal is that Addons will be able to use and implement new storage backends
 if they wish and also be extended so they can load/save things as they wish.
 
 The first few iterations will not focus on Addon support. We want to ensure
@@ -87,7 +87,7 @@ The current plan looks like this:
   * We want to load player data using the new storage layer with the current
     data system.
   * We'll want to monitor for any possible issues and generally refine 
-    how this system and should look
+    how this system should look
 * Phase 2 - Implement new experimental binary backend for [`PlayerProfile`](https://github.com/Slimefun/Slimefun4/blob/bbfb9734b9f549d7e82291eff041f9b666a61b63/src/main/java/io/github/thebusybiscuit/slimefun4/api/player/PlayerProfile.java).
   * Create a new backend for binary storage
   * Implement in an experimental capacity and allow users to opt-in

src/main/java/io/github/thebusybiscuit/slimefun4/api/player/PlayerProfile.java

@@ -1,10 +1,8 @@
 package io.github.thebusybiscuit.slimefun4.api.player;
 
 import java.util.Collection;
-import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
 import java.util.OptionalInt;
 import java.util.Set;
@@ -56,7 +54,7 @@
  */
 public class PlayerProfile {
 
-    private final UUID uuid;
+    private final UUID ownerId;
     private final String name;
 
     private final Config configFile;
@@ -71,11 +69,11 @@ public class PlayerProfile {
     private final PlayerData data;
 
     protected PlayerProfile(@Nonnull OfflinePlayer p, PlayerData data) {
-        this.uuid = p.getUniqueId();
+        this.ownerId = p.getUniqueId();
         this.name = p.getName();
         this.data = data;
 
-        configFile = new Config("data-storage/Slimefun/Players/" + uuid.toString() + ".yml");
+        configFile = new Config("data-storage/Slimefun/Players/" + ownerId.toString() + ".yml");
     }
 
     /**
@@ -104,7 +102,7 @@ protected PlayerProfile(@Nonnull OfflinePlayer p, PlayerData data) {
      * @return The {@link UUID} of our {@link PlayerProfile}
      */
     public @Nonnull UUID getUUID() {
-        return uuid;
+        return ownerId;
     }
 
     /**
@@ -130,6 +128,7 @@ public boolean isDirty() {
      * This method will save the Player's Researches and Backpacks to the hard drive
      */
     public void save() {
+        Slimefun.getPlayerStorage().savePlayerData(this.ownerId, this.data);
         dirty = false;
     }
 
@@ -247,7 +246,7 @@ public final void markDirty() {
         IntStream stream = IntStream.iterate(0, i -> i + 1).filter(i -> !configFile.contains("backpacks." + i + ".size"));
         int id = stream.findFirst().getAsInt();
 
-        PlayerBackpack backpack = PlayerBackpack.newBackpack(this.uuid, id, size);
+        PlayerBackpack backpack = PlayerBackpack.newBackpack(this.ownerId, id, size);
         this.data.addBackpack(backpack);
 
         return backpack;
@@ -479,17 +478,17 @@ public PlayerData getPlayerData() {
 
     @Override
     public int hashCode() {
-        return uuid.hashCode();
+        return ownerId.hashCode();
     }
 
     @Override
     public boolean equals(Object obj) {
-        return obj instanceof PlayerProfile profile && uuid.equals(profile.uuid);
+        return obj instanceof PlayerProfile profile && ownerId.equals(profile.ownerId);
     }
 
     @Override
     public String toString() {
-        return "PlayerProfile {" + uuid + "}";
+        return "PlayerProfile {" + ownerId + "}";
     }
 
 }

src/main/java/io/github/thebusybiscuit/slimefun4/storage/backend/legacy/LegacyStorage.java

@@ -16,8 +16,6 @@
 
 import javax.annotation.Nonnull;
 
-import java.io.IOException;
-import java.nio.file.Files;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Set;
@@ -30,7 +28,7 @@ public class LegacyStorage implements Storage {
     @Override
     public PlayerData loadPlayerData(@Nonnull UUID uuid) {
         Config playerFile = new Config("data-storage/Slimefun/Players/" + uuid + ".yml");
-        // Not too sure why this is it's own file
+        // Not too sure why this is its own file
         Config waypointsFile = new Config("data-storage/Slimefun/waypoints/" + uuid + ".yml");
 
         // Load research
@@ -81,7 +79,7 @@ public PlayerData loadPlayerData(@Nonnull UUID uuid) {
     @Override
     public void savePlayerData(@Nonnull UUID uuid, @Nonnull PlayerData data) {
         Config playerFile = new Config("data-storage/Slimefun/Players/" + uuid + ".yml");
-        // Not too sure why this is it's own file
+        // Not too sure why this is its own file
         Config waypointsFile = new Config("data-storage/Slimefun/waypoints/" + uuid + ".yml");
 
         // Save research