refactor: move functions to utils + code-review fixes

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/MMCTime.h

@@ -22,4 +22,13 @@ namespace Time {
 
 QString prettifyDuration(int64_t duration);
 
+/**
+ * @brief Returns a string with short form time duration ie. `2days 1h3m4s56.0ms`
+ * miliseconds are only included if `percison` is greater than 0
+ * 
+ * @param duration a number of seconds as floating point
+ * @param precision number of decmial points to display on fractons of a second, defualts to 0.
+ * @return QString 
+ */
+QString humanReadableDuration(double duration, int precision = 0);
 }