Remove commands

[Fazt01]

We don't want those complicated commands. ID gen is the only thing we want to be using. And I don't really want to move it elsewhere (and coming up with a name).

Also some minor fixes in second commit:

• errors are logged (cobra does it by itself, when RunE returns an error)
• version returns the version 👀 tested:

$ go run go.strv.io/tea/cmd/tea@8433586669367683e1e4e30612a6cf463eabf555 version
v0.4.1-0.20240816090731-843358666936

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 11 lines in your changes missing coverage. Please review.

Project coverage is 46.84%. Comparing base (5323dc9) to head (8433586).

Files	Patch %	Lines
cmd/tea/version.go	0.00%	5 Missing ⚠️
cmd/tea/main.go	0.00%	4 Missing ⚠️
cmd/tea/gen_id.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master      #35       +/-   ##
===========================================
+ Coverage   29.75%   46.84%   +17.08%     
===========================================
  Files          10        5        -5     
  Lines         662      222      -440     
===========================================
- Hits          197      104       -93     
+ Misses        435       95      -340     
+ Partials       30       23        -7     

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