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>

js/app.autofill.js

@@ -82,11 +82,13 @@ function autofillPushHotkeys() {
     localStorage.setItem('autofillHotkeyFull', JSON.stringify(state.autofillHotkeyFull));
     localStorage.setItem('autofillHotkeyPwd',  JSON.stringify(state.autofillHotkeyPwd));
     localStorage.setItem('quickSearchHotkey',  JSON.stringify(state.quickSearchHotkey));
+    localStorage.setItem('newEntryHotkey',     JSON.stringify(state.newEntryHotkey));
     if (Bridge.active) {
         Bridge.setAutofillHotkeys(state.autofillEnabled, {
             full:        state.autofillHotkeyFull,
             password:    state.autofillHotkeyPwd,
             quickSearch: state.quickSearchHotkey,
+            newEntry:    state.newEntryHotkey,
         });
     }
 }