feat: Sidebar host click should focus existing tab instead of opening a new connection (#1289)

https://github.com/Termix-SSH/Support/issues/1289

src/ui/tests/types/host-sidebar-preferences.test.ts

@@ -27,6 +27,7 @@ describe("defaultHostSidebarPreferences", () => {
         statusColorScheme: "accent",
         openOnDoubleClick: false,
         showFolderPaths: true,
+        focusExistingTab: true,
       },
     });
   });
@@ -65,6 +66,7 @@ describe("sanitizeHostSidebarPreferences", () => {
         statusColorScheme: "status",
         openOnDoubleClick: true,
         showFolderPaths: false,
+        focusExistingTab: false,
       },
     };
     expect(sanitizeHostSidebarPreferences(valid)).toEqual(valid);
@@ -90,6 +92,16 @@ describe("sanitizeHostSidebarPreferences", () => {
     ).toBe(true);
   });
 
+  it("defaults focusExistingTab to true when missing or not a boolean", () => {
+    expect(
+      sanitizeHostSidebarPreferences({ display: {} }).display.focusExistingTab,
+    ).toBe(true);
+    expect(
+      sanitizeHostSidebarPreferences({ display: { focusExistingTab: "no" } })
+        .display.focusExistingTab,
+    ).toBe(true);
+  });
+
   it("falls back to defaults for invalid enum values", () => {
     const result = sanitizeHostSidebarPreferences({
       sort: { key: "not-a-real-key", pinnedFirst: "yes" },