displaying delays in second is unfriendly

[thomasleveil]

Users should not have to do the math to figure out the delays in minute. In the preferences, the scan delay is expressed in second:

<string-array translatable="false" name="relax_delay">
    <item>60</item>
    <item>90</item>
    <item>120</item>
    <item>180</item>
    <item>240</item>
    <item>300</item>
    <item>600</item>
</string-array>

It should be displayed in a more friendly manner as:

1 min
1 min 30 s
2 min
3 min
4 min
5 min
10 min

[Tashla]

To be fully honest, that's just basic math (wouldn't even call it math). Reason why it's like this, is because we then can also use that value rather than having to convert it back.