[stable22] Avoid using non-existing \OCP\Server::get

[CarlSchwan]

and fix translation as it seems I forgot to push it to stable22 in a previous PR of mine

[codecov-commenter]

Codecov Report

Merging #1107 (77b4754) into stable22 (ba5913c) will not change coverage.
The diff coverage is 0.00%.

❗ Current head 77b4754 differs from pull request most recent head f927cd8. Consider uploading reports for the commit f927cd8 to get more accurate results

@@            Coverage Diff             @@
##             stable22   #1107   +/-   ##
==========================================
  Coverage        0.69%   0.69%           
  Complexity       5753    5753           
==========================================
  Files             291     291           
  Lines           19896   19896           
==========================================
  Hits              138     138           
  Misses          19758   19758           

Impacted Files	Coverage Δ
lib/Model/ShareWrapper.php	0.00% <0.00%> (ø)

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