feat(hotkey): make the new-entry hotkey configurable + fix tray title capture

Part A — Ctrl+Shift+A (new entry from window title) is now editable like the
other 3 global hotkeys, following the same pattern end to end: state.newEntryHotkey
(synced), a capture button in Settings > Autofill, dup cross-check, reset-to-
defaults, autofillPushHotkeys, and Bridge.setAutofillHotkeys carrying ne_mods/
ne_vk. Delphi gets SetNewEntryHotkey + stores the live combo (FNewEntryHotkeyMods/
Vk) so ExecuteAutofill's post-fill re-register uses the user's combo instead of
resetting to Ctrl+Shift+A. UMainForm parses ne_* unconditionally (works with
autofill off).

Part B — new-entry from the tray pre-filled the title with "Password Manager":
GetForegroundWindow resolved to our own hidden window. Only capture the title
when the foreground window belongs to another process; otherwise pass '' (blank).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

index.html

@@ -687,6 +687,12 @@
                         </span>
                         <button class="btn btn-ghost btn-sm hotkey-capture-btn" id="settingQuickSearchCombo">Ctrl+Shift+Q</button>
                     </div>
+                    <div class="setting-row">
+                        <span style="font-size:12px;color:var(--text-dim)">
+                            New entry from the foreground window title
+                        </span>
+                        <button class="btn btn-ghost btn-sm hotkey-capture-btn" id="settingNewEntryCombo">Ctrl+Shift+A</button>
+                    </div>
                     <p style="font-size:11px;color:var(--text-faint);margin:6px 0 0;line-height:1.4">
                         Click a button, then press your new combo. Needs Ctrl, Alt or Win + a letter / digit / F-key.
                     </p>