Replace commas with dashes to avoid naming errors

[Stichoza]

According to lab.flipper.net, files are not allowed to contain commas. It displays an error right when you click rename on files. To avoid this error, it would be good to replace comma with dashes.

Example

What's new

• Replaced commas with dashes

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For the reviewer

• I've uploaded the firmware with this patch to a device and verified its functionality
• I've confirmed the bug to be fixed / feature to be stable

[WillyJL]

What a goofy limitation, can't think of any reason why commas would be an issue, maybe they just forgot to add it

[Stichoza]

Yeah, but dashes are more common in datetime strings than commas anyways so idk

[WillyJL]

They are for dates, I would've used colons but that's an illegal character. Didn't use dots as they are for the extension. Commas are thin so the text doesn't go off screen too much and also it differentiates from the date and extension