Developers who know the language are now needed to help complete this PR. The menu translation items template is generated by https://github.com/adaext/vim-menutrans-helper. I've scanned all the menu items and created a fairly completed template. It haven't been updated for years, many new items would be added except items inmenu.vim.

Codecov Report

Merging #10724 (042a541) into master (99af91e) will increase coverage by 0.01%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #10724      +/-   ##
==========================================
+ Coverage   81.71%   81.72%   +0.01%     
==========================================
  Files         158      158              
  Lines      185631   185631              
  Branches    41980    41980              
==========================================
+ Hits       151684   151709      +25     
+ Misses      21485    21464      -21     
+ Partials    12462    12458       -4     

Flag	Coverage Δ
huge-clang-none	82.61% <ø> (+<0.01%)	:arrow_up:
linux	82.61% <ø> (+<0.01%)	:arrow_up:
mingw-x64-HUGE	0.00% <ø> (ø)
mingw-x64-HUGE-gui	78.19% <ø> (+0.02%)	:arrow_up:
windows	76.96% <ø> (+0.02%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/ui.c	74.33% <0.00%> (-0.27%)	:arrow_down:
src/message.c	80.59% <0.00%> (-0.24%)	:arrow_down:
src/channel.c	83.83% <0.00%> (-0.18%)	:arrow_down:
src/mbyte.c	72.04% <0.00%> (-0.14%)	:arrow_down:
src/misc2.c	89.19% <0.00%> (-0.10%)	:arrow_down:
src/os_win32.c	57.38% <0.00%> (-0.04%)	:arrow_down:
src/gui.c	73.06% <0.00%> (ø)
src/term.c	73.77% <0.00%> (ø)
src/netbeans.c	72.81% <0.00%> (+0.07%)	:arrow_up:
src/regexp_nfa.c	90.11% <0.00%> (+0.10%)	:arrow_up:
... and 7 more

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I've left comments for the first level menus. I will update and review the rest if this is merged, I am too uncomfortable with Github to be able to work with someone else's PR.