Vivaldi Snapshot 5.3.2656.3

這是一個測試版本，它包含未完善的特性和翻譯，存在未修復的問題，並且未經過完整的測試，可能會造成某些功能無法正常使用、頻繁崩潰、或資料丟失等。請謹慎安裝使用，安裝前請務必備份您的資料。

Mirrors in Chuanghua (5.3.2656.3):

[macOS][Fullscreen video] Partially broken when tabs are on the left (VB-88236)
[macOS][Keyboard][Developer Tools] Change default shortcut to ⌘⌥I (VB-88720)
[Service worker] Don’t allow users to unregister background service worker (VB-88683)
[Fullscreen] Improve fullscreen transition on youtube (VB-13303)
[Panel] Left floating panel is overlapping content (VB-88372)
[Tab] Always load pinned tab setting doesn’t work (VB-88753)
[Private window] Open link in Private Window does not work (VB-88736)

[Calendar] Wrong color when dragging to resize (VB-87834)
[Mail] Cannot choose custom label in filter & actions (VB-88831)
[Mail] Allow moving messages between accounts (VB-88735)
[Mail] Rich Text HTML Signatures do not update when switching accounts (VB-88705)
[Mail] Possible blank label without a delete option after several upgrades(VB-87395)
[Mail] Add default labels (VB-88709)