* Set `disable-floating-window` in client ui, it shows enabled when
option is enabled and has floating window permission.
* Remove ignore battery setting because not work on every device.
* When the phone orientation changes, make the Y coordinate change
proportionally, when changing back, the floating window position is still the original one.
* Add custom client option `floating-window-untouchable` to make the
click event pass through the floating window automically. Set it untouchable automically when transparency is 0.
* On my phone, floating window size 16 no works and 32 works, so keep
the size range [32, 320]
Signed-off-by: 21pages <sunboeasy@gmail.com>
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