nls: missing or incorrect localizations

[vince-fugnitto]

Bug Description:

I noticed in a couple of instances that localizations are incorrect, either casing or simply completely missing despite being part of vscode-loc.

Steps to Reproduce:

1. start the application
2. install the french language pack
3. execute the command configure display language, and select fr (french)
4. restart the application using the prompt
5. on restart notice that the file (fichier) menu is not capitalized, and notice that submenu items are missing such as open file...

[msujew]

I believe the file/fichier issue is a consequence of #10946, where I've normalized all strings so that the translations are independent of any capitalization. We should probably use a more "fail-safe" approach there.

Regarding Open file...: It seems like I forgot to add the nls.localizeByDefault call :)

theia/packages/workspace/src/browser/workspace-commands.ts

Line 68 in 1972f21

dialogLabel: 'Open File'