Remove Apps and first run logic from Tenant struct

[sergiught]

🔧 Changes

The ability to track when an application is used for the first time in a command was introduced in #199, however #302 erroneously removes the func call to actually persist that to the config, thus right now we always show the hint, regardless if we used the application multiple times with the same cli command.

Due to the fact that this was used only within auth0 test login command and it is now effectively broken and the fact that it adds unnecessary logic at the moment, in this PR we're removing it completely and always displaying the hint at the end.

This PR aids as well simplifying the work for a follow up PR that will refactor the Config logic into its own package.

📚 References

• Show a hint the first time test login runs [CLI-72] #199
• Add Heap integration [CLI-158] #302

🔬 Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: +0.27 🎉

Comparison is base (4f88a7d) 70.90% compared to head (1078c79) 71.17%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #742      +/-   ##
==========================================
+ Coverage   70.90%   71.17%   +0.27%     
==========================================
  Files          87       87              
  Lines       11209    11162      -47     
==========================================
- Hits         7948     7945       -3     
+ Misses       2744     2700      -44     
  Partials      517      517              

Impacted Files	Coverage Δ
internal/cli/cli.go	59.79% <ø> (+5.49%)	⬆️
internal/cli/test.go	44.82% <0.00%> (+3.19%)	⬆️
internal/display/test.go	46.34% <0.00%> (-11.24%)	⬇️

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