Link to app editor Fysion if it is installed

[andydotxyz]

If the source is available and the app is installed let it be edited from the bar.

This will be a killer feature for FyshOS release :)

Checklist:

• Tests included.
• Lint and formatter run with no errors.
• Tests all pass.

[coveralls]

Pull Request Test Coverage Report for Build 11539734214

Details

• 18 of 86 (20.93%) changed or added relevant lines in 4 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.1%) to 28.108%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/icon/fdo.go	18	19	94.74%
internal/icon/macos.go	0	3	0.0%
modules/status/network.go	0	3	0.0%
internal/ui/baricon.go	0	61	0.0%

Files with Coverage Reduction	New Missed Lines	%
internal/icon/fdo.go	1	77.59%
internal/ui/baricon.go	1	21.29%

Totals
Change from base Build 11410899784:	-0.1%
Covered Lines:	1630
Relevant Lines:	5799

---

💛 - Coveralls

[andydotxyz]

All right, this now gets the source from apps who's metadata says the source is available.
It clones the code and opens the editor :)

[andydotxyz]

No comments so landing :)