Temporary workaround for app crashing

[gdonisi]

The app is basically useless if it crashes before saving a note. This should fix #2 and gives you time to find a better solution if needed, because probably this isn't a perfect code style.
Tested with these languages as system default: English, Italian, French, German.

[gdonisi]

I've added a new commit. This fixes the app crash when a user clicks the Save button when he don't record the note. Also fixes a blank view if a user records a 0 seconds audio note:

[gdonisi]

Third commit, I think using a timestamp instead of the note title as filename is better, I have two main reasons:

• Title can be added later: if someone's in a hurry and just wants to record a quick note, he just starts recording and he can add the title before saving. Now the user can also modify the note title without consequences.
• Saving two or more notes with the same title would overwrite the previous note. Having a timestamp prevents accidental loss.

[certified84]

Hi there @gdonisi,

Well done so far. Saving a recording with the current time instead of the note title was always something I considered working on and I'm happy you already did. I'm also happy you found a better way of handling the roundOffDecimal() function.

Before merging this PR, I'd like to understand why you changed all the requireContext() to context.

[gdonisi]

Sure, it's just my style of coding: when I make a lot of calls to the same function like this, I prefer to have one variable to store the value (the context in this case) and use it instead of calling always the function.
Nothing changes to the behavior, you can use the requireContext again if you wish to 😁

[certified84]

Its fine since there are no changes to the behavior. Well done mate 🙌🙌
I'll be merging the PR now.