IndependentPanel: Reset temporary expansion on search blur

Ensure the sidebar’s temporary expansion (forceExpand) is cleared when the
search input loses focus. This prevents an edge case where the panel could
remain stuck expanded if the pin state is toggled while the input is focused.

- Unconditionally clear forceExpand on input blur
- Kept behavior of clearing forceExpand on pin toggle

Why: avoids a UX inconsistency reported in review while keeping scope
minimal and isolated to the Independent Panel UI.

Author: PeterDaveHello

src/pages/IndependentPanel/App.jsx

@@ -278,7 +278,7 @@ function App() {
               autoComplete="off"
               ref={searchInputRef}
               onFocus={() => setForceExpand(true)}
-              onBlur={() => collapsed && setForceExpand(false)}
+              onBlur={() => setForceExpand(false)}
             />
           </div>
           <hr />