Update StatUtils.ts for number formatting + Format numbers used in views

[NullCub3]

From: lukeleppan#114

I wrote a new function (formatNumber) that removes floating point errors and adds thousands separators to a number, and applied this function to the results of most numeric variables sent to StatusBar.ts

At the very least, this hopefully resolves lukeleppan#103 and resolves lukeleppan#111

FYI: I haven't tested this change myself in Obsidian, so I may have missed something.

And: DrYoshiyahu#1

Builds on @.DrYoshiyahu formatting to always present formatted numbers, and in one case preserving the number where it is used for calculations (but not shown to user). Addresses lukeleppan#103 and lukeleppan#111

This is not the best organization/naming, but it compiles and works as expected.

Screenshot showing Total Pages (tp) and Words per Day (wpd) that are properly rounded.

Screenshot showing Current Pages (p) and Total Pages (ppd) that are properly rounded.