Fix typos, grammar errors, and a logic bug in noc_controller

[RafsanNeloy]

Fixed spelling/grammar issues across 38 files (acces→access, overriden→overridden,
occured→occurred, environement→environment, and more). Also fixed a logic bug in
noc_controller.rb where / 24.hours incorrectly computed a fraction of a day instead of hours.

[prioux]

The code in noc_controllers was supposed to compute a fraction of a day, I think. It doesn't matter, because that particular line of code is dead (the variable @num_hours is not used anywhere)

[prioux]

I'll review the typos and approve later

[RafsanNeloy]

The code in noc_controllers was supposed to compute a fraction of a day, I think. It doesn't matter, because that particular line of code is dead (the variable @num_hours is not used anywhere)

Should I remove that particular deadl line of code in noc_controller?

[prioux]

I already did. See the commit that I created immediately after I merged your PR. (It was literally 3 minutes later): 0c0656f