change to dark mode

src/App.svelte

@@ -636,7 +636,7 @@
         />
       </aside>
 
-      <!-- Center: summary + status + commit + file history + compare -->
+      <!-- Center: summary + status + commit + compare -->
       <section class="main-panel" aria-label="Repository status">
         <div class="repo-summary">
           <div class="repo-meta">
@@ -679,18 +679,6 @@
           />
         </div>
 
-        <div class="file-history-section">
-          <FileHistoryPanel
-            {fileHistory}
-            {selectedExplorerPath}
-            selectedExplorerLabel={selectedExplorerPath ? `${selectedExplorerKind === "folder" ? "Folder" : "File"} history` : "File history"}
-            {hasRepository}
-            {isBusy}
-            onDiff={diffSelectedFileFromCommit}
-            onRestore={restoreSelectedFileFromCommit}
-          />
-        </div>
-
         <ComparePanel
           {commits}
           {hasRepository}
@@ -707,7 +695,7 @@
         />
       </section>
 
-      <!-- Right sidebar: commit history -->
+      <!-- Right sidebar: commit graph + file history -->
       <aside class="history-aside" aria-label="Commit history">
         <HistoryPanel
           {commits}
@@ -722,6 +710,15 @@
             expandedCommitHashes = next;
           }}
         />
+        <FileHistoryPanel
+          {fileHistory}
+          {selectedExplorerPath}
+          selectedExplorerLabel={selectedExplorerPath ? `${selectedExplorerKind === "folder" ? "Folder" : "File"} history` : "File history"}
+          {hasRepository}
+          {isBusy}
+          onDiff={diffSelectedFileFromCommit}
+          onRestore={restoreSelectedFileFromCommit}
+        />
       </aside>
     </section>
   </div>