alarm: Long press to stop alarm

[vkareh]

This change prevents accidentally turning off alarm by ensuring that there is a deliberate long press, similar to resetting the Timer app.

[github-actions]

Build size and comparison to main:

Section	Size	Difference
text	373264B	256B
data	948B	0B
bss	22536B	0B

Run in InfiniEmu

[mark9064]

I haven't had a chance to test this with hardware since the ringing screen has been redesigned. Does the progress bar need to move at all? Maybe it could go between the time and the button in the blank space. Also if it looks a bit blocky (again I need to test), it will render more nicely if it is thinner since there will be fewer pixels to push.

[mark9064]

Especially with the bigger button, I think this is a good addition. Thanks for the contribution! The only suggestion I have is calculating the bar progress more consistently and making sure it's super clear to the user that they have to hold the button

[mark9064]

xTaskGetTickCount() - stopBtnPressTime > pdMS_TO_TICKS(150) is tolerant to tick count wraparound
Should we start showing the bar earlier than 150ms, as you need to hold the button to dismiss it. In fact, would it be better with no delay at all? A long press isn't super intuitive, so giving immediate feedback will make it clearer that holding it is needed IMO

[mark9064]

If we calculate elapsed ticks with xTaskGetTickCount() - stopBtnPressTime, I think it'd be better to calculate the bar position using this. So if we want to hold for say 1 second, we can do something like elapsedTicks * 1000 / configTICK_RATE to get the number of milliseconds the button has been held, and then draw the progress appropriately / stop alerting when more than 1000 milliseconds has passed.