Profile avatar resize crop eklendi. Hatalar fixlendi.

client/src/components/Topbar.svelte

@@ -6,6 +6,7 @@
     activeSearchTerm,
     updateSearchTerm
   } from "../stores/searchStore.js";
+  import { avatarUrlStore } from "../stores/avatarStore.js";
 
   import { clearTokens } from "../utils/api.js";
 
@@ -15,6 +16,7 @@
   export let avatarUrl = null;
   let showAvatarMenu = false;
   let avatarWrap;
+  $: resolvedAvatar = avatarUrl || $avatarUrlStore;
 
   const onToggle = () => dispatch("toggleMenu");
 
@@ -82,8 +84,8 @@
 
   <div class="avatar-wrap" bind:this={avatarWrap}>
     <button class="avatar" type="button" aria-label="Profil" on:click={toggleAvatarMenu}>
-      {#if avatarUrl}
-        <img src={avatarUrl} alt="Avatar" loading="lazy" />
+      {#if resolvedAvatar}
+        <img src={resolvedAvatar} alt="Avatar" loading="lazy" on:error={() => (resolvedAvatar = null)} />
       {:else}
         <div class="placeholder">
           <i class="fa-regular fa-user"></i>