fix(locale): improve Swedish phone numbers format

[Gyran]

https://en.wikipedia.org/wiki/Telephone_numbers_in_Sweden

Numbers starting with 070, 072, 073, 076 or 079 are reserved for mobile numbers in Sweden.

[codecov]

Codecov Report

Merging #2520 (e7fd39e) into next (e0ba50b) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

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  Coverage   99.57%   99.58%           
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  Files        2779     2779           
  Lines      249273   249303   +30     
  Branches     1080     1083    +3     
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+ Hits       248217   248265   +48     
+ Misses       1028     1010   -18     
  Partials       28       28           

Files	Coverage Δ
src/locales/sv/phone_number/formats.ts	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

[matthewmayer]

Note that faker.phone.number() does not specifically promise to return mobile numbers. Can also be landlines. If you have a use-case for mobile numbers only it might be good to get your input on #1542

[Gyran]

That's true, I could add formats for landline numbers as well. But the current formats does not look like any Swedish numbers. So I thought that this is at least make the SV faker version return Swedish phone number (but not all kinds).
For my use case I only want mobile numbers and I think that is true for most Swedish use cases. But it would be nice as you say to be able to specify that.

Will write in the other issue as well, but in the meantime, is this change something you would be interested in or how can I change it to follow the guidelines? Add these formats to the cell formats instead?

[matthewmayer]

If it's an improvement from the current data we should accept this PR anyway.

At the moment the cell_phone definitions are not actively used by Faker.

You can have a read through the discussion on the other issue and add any comments on how you would typically use this data to help guide us on what would be most useful in future.

[ST-DDT]

I could add formats for landline numbers as well.

I think it would be best to include them for now so that we have them already when we split/improve the method

[ST-DDT]

And please also include ones with the international prefix for variation.