add new Context Menu for file Explorer

fix blocking UI
when select the file in Status also select in the file History

src/lib/components/StatusPanel.svelte

@@ -9,6 +9,8 @@
     hasRepository: boolean;
     isBusy: boolean;
     status: GitStatus | null;
+    selectedFilePath: string;
+    onSelectFile: (file: GitFileStatus) => void;
     onStage: (file: GitFileStatus) => void;
     onUnstage: (file: GitFileStatus) => void;
     onDiscard: (file: GitFileStatus, staged: boolean) => void;
@@ -24,6 +26,8 @@
     hasRepository = false,
     isBusy = false,
     status = null,
+    selectedFilePath = "",
+    onSelectFile = () => {},
     onStage = () => {},
     onUnstage = () => {},
     onDiscard = () => {},
@@ -102,9 +106,19 @@
   {:else}
     <div class="overflow-auto p-2">
       {#each changedFiles as file (`${file.old_path ?? ""}:${file.path}`)}
-        <article class="file-row">
+        <article
+          class="file-row"
+          class:selected={selectedFilePath === file.path}
+        >
           <div class="file-title">
-            <strong title={displayPath(file)}>{fileName(file)}</strong>
+            <button
+              class="file-title-button"
+              type="button"
+              onclick={() => onSelectFile(file)}
+              title={`Select ${displayPath(file)} in Explorer`}
+            >
+              <strong>{fileName(file)}</strong>
+            </button>
           </div>
 
           <div class="change-lanes">