fix some typos and grammars

[cedricfung]

No description provided.

[Copilot]

Pull request overview

This PR polishes user-facing text by fixing typos/grammar, standardizing capitalization, and renaming a few localization keys so the UI can reference correctly spelled identifiers.

Changes:

• Rename localization keys: nowAnAddmin → nowAnAdmin, unknowError → unknownError, unlockWithWasscode → unlockWithPasscode, and update call sites.
• Improve/standardize multiple English strings in intl_en.arb and regenerate localization outputs.
• Capitalize and clarify a few device-transfer/menu labels.

Reviewed changes

Copilot reviewed 13 out of 21 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib/widgets/window/menus.dart	Updates the debug menu label capitalization for device transfer.
lib/widgets/message/item/system_message.dart	Switches to the corrected localization key nowAnAdmin.
lib/widgets/auth.dart	Switches to the corrected localization key unlockWithPasscode.
lib/utils/device_transfer/device_transfer_dialog.dart	Updates device transfer UI strings (capitalization/wording).
lib/ui/landing/landing.dart	Switches to the corrected localization key unknownError.
lib/l10n/intl_zh.arb	Renames corrected keys (nowAnAdmin, unknownError, unlockWithPasscode).
lib/l10n/intl_zh-TW.arb	Renames corrected keys (nowAnAdmin, unknownError, unlockWithPasscode).
lib/l10n/intl_zh-HK.arb	Renames corrected keys (nowAnAdmin, unknownError, unlockWithPasscode).
lib/l10n/intl_ru.arb	Renames corrected key (nowAnAdmin).
lib/l10n/intl_ja.arb	Renames corrected key (nowAnAdmin).
lib/l10n/intl_es.arb	Renames corrected key (nowAnAdmin).
lib/l10n/intl_en.arb	Fixes many English strings and renames corrected keys.
lib/generated/l10n.dart	Regenerated localization accessors; includes renamed keys and updated messages.
lib/generated/intl/messages_zh.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_zh-TW.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_zh-HK.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_ru.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_ja.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_es.dart	Regenerated message map for renamed keys.
lib/generated/intl/messages_en.dart	Regenerated message map for updated English strings and renamed keys.
lib/app.dart	Switches to the corrected localization key unknownError.

Comments suppressed due to low confidence (1)

lib/widgets/window/menus.dart:280

• This menu item label is hard-coded while the surrounding menu labels use context.l10n.*. To keep the window menu translatable/consistent, please add a localization key for this label and use it here (even if it’s currently behind kDebugMode).

                    PlatformMenuItem(
                      label: 'Chat Backup and Restore',
                      onSelected: signed
                          ? () {
                              showDeviceTransferDialog(context);
                            }

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