[LSP5] Change notification dooldown time to 1 minute, alsp update docs

[martinsaposnic]

LSPS5 follow ups. Addressing comments #3975 (review) and #3975

changes:

• notification_cooldown is not a config so it does not make sense to call the constant DEFAULT.
• notification_cooldown it's not measured in hours, so changed the name, and also changed the constant from 1 hour to 1 minute (reasons explained in this comment LSPS5: Correct notification cooldown & reset logic #3975 (comment)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.92%. Comparing base (c8450bf) to head (24712cf).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3994      +/-   ##
==========================================
- Coverage   88.93%   88.92%   -0.01%     
==========================================
  Files         174      174              
  Lines      124538   124538              
  Branches   124538   124538              
==========================================
- Hits       110757   110747      -10     
  Misses      11291    11291              
- Partials     2490     2500      +10     

Flag	Coverage Δ
fuzzing	22.18% <0.00%> (ø)
tests	88.75% <100.00%> (-0.01%)	⬇️

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[tnull]

This needs a rebase now.

[martinsaposnic]

rebase done!

[tnull]

As mentioned elsewhere, we might need a spec change in parallel to this.

Also, nit: 'LSP5', 'dooldown' and 'alsp' typos in the commit message (which could otherwise also use a bit more detail what this change is and why we want it).

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