Hide updatable mods section when there are no updates

src/main/java/xyz/deathsgun/modmanager/gui/widget/CategoryListWidget.java

@@ -40,10 +40,12 @@ public CategoryListWidget(MinecraftClient client, int width, int height, int top
     public void init() {
         try {
             this.categories = new ArrayList<>();
-            this.addEntry(new CategoryListEntry(this, new Category(
-                    "updatable",
-                    new TranslatableText("modmanager.categories.updatable")
-            )));
+            if (ModManager.getUpdateChecker().updatesAvailable()) {
+                this.addEntry(new CategoryListEntry(this, new Category(
+                        "updatable",
+                        new TranslatableText("modmanager.categories.updatable")
+                )));
+            }
             ModManager.getModProvider().getCategories().forEach(category -> this.addEntry(new CategoryListEntry(this, category)));
             if (parent.getEntry(this) != null) {
                 setSelected(parent.getEntry(this));

src/main/java/xyz/deathsgun/modmanager/services/UpdateCheckService.java

@@ -36,6 +36,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 public class UpdateCheckService extends Thread {
 
@@ -115,6 +116,10 @@ public boolean updatesAvailable() {
         return !this.updates.isEmpty();
     }
 
+    public void removeUpdate(String modId) {
+        this.updates.removeIf(update -> Objects.equals(update.modId, modId));
+    }
+
     @Nullable
     public ModVersion getUpdate(SummarizedMod mod) {
         for (AvailableUpdates update : this.updates) {

src/main/java/xyz/deathsgun/modmanager/tasks/ModUpdateTask.java

@@ -43,5 +43,6 @@ protected void execute() throws Exception {
         Files.delete(jar);
         InstallationUtil.downloadMod(http, InstallationUtil.getVersionForMod(subject));
         ModManager.getModManipulationManager().markManuallyUpdated(subject);
+        ModManager.getUpdateChecker().removeUpdate(subject.id());
     }
 }