2.1.338 beta

UI changes

[Added] New "Notification Icon" setting option: "Notification without icon": #222

So now we now have 4 options:

1. Default icon. Icon and notification are always visible.
2. Colored icon (only in Android 4.X). Icon and notification are always visible.
3. Notification without icon. Icon is not visible. Permanent notification is visible, but it has low priority, so it is semi-transparent and placed below all other notifications.
   4 None. No icon, no notification.

[Changed] Make "Protection paused" a permanent notification: #231

This change should help with #223. When Adguard pauses protection, sometimes Android may kill it's process and then do not bring it back.

Minor changes

[Changed] Use keyboard settings to detect default language-specific filters: #100
[Fixed] Tethering/hotspot is falsely detected (second try): #138
[Fixed] T-Mobile Wi-Fi calling issue: #233
[Fixed] Error while sending feedback: #224
[Fixed] Sites with Transfer-Encoding=chunked are broken in "Simplified" filtering mode: #225
[Changed] Add Link Bubble Browser to the browsers list: #227
[Changed] Improve release notes layout: #230