fix(NcSelect): truncate long selected labels without overflowing the input

[Koc]

❓ Open questions

• How can I test that?
• Can I get more permissions for that organization (like I have in main org)?

🖼️ Screenshots

🏚️ Before	🏡 After

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable
• 2️⃣ Backport to stable8 for maintained Vue 2 version or not applicable

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.28%. Comparing base (5f6ae35) to head (dbaeeb8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8829   +/-   ##
=======================================
  Coverage   53.28%   53.28%           
=======================================
  Files         109      109           
  Lines        3699     3699           
  Branches     1083     1083           
=======================================
  Hits         1971     1971           
  Misses       1473     1473           
  Partials      255      255           

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