fix missing i18n messages in IDE menu

[coby2023t]

Motivation

fix missing i18n messages in IDE menu, like Save

[per1234]

Thanks for your pull request @coby2023t.

Arduino only maintains translations for the strings that are unique to Arduino IDE. All the strings that come from the Eclipse Theia framework Arduino IDE is built on are localized using VS Code language pack extensions.

For example, you can see the translations for the "Chinese (Simplified) (简体中文) Language Pack for Visual Studio Code" language pack here:

https://github.com/microsoft/vscode-loc/tree/289bf47811a304b8dff152427c1df82c0f09c96a/i18n/vscode-language-pack-zh-hans/translations

If we add localization data to this repository for strings that have already been localized in the language pack, that would make unnecessary work for the community members who contribute translations to the Arduino IDE project.

I do confirm that there was a regression in the localization of the File > Save menu item. I bisected the regression to 192aac5, where the language packs were bumped from 1.53.2 to 1.70.0.

The localization data key for the menu item is set here:

arduino-ide/arduino-ide-extension/src/browser/contributions/save-sketch.ts

Line 28 in fe53b8e

label: nls.localize('vscode/fileCommands/save', 'Save'),

Using the zh-hans locale as an example, the data is here in version 1.53.2 of the language pack:

https://github.com/microsoft/vscode-loc/blob/295dfb35491adc41df4b89e0d839086131a34257/i18n/vscode-language-pack-zh-hans/translations/main.i18n.json#L5000

		"vs/workbench/contrib/files/browser/fileCommands": {
			"saveAs": "另存为...",
			"save": "保存",

Without explanation, the data was moved in the language packs from vs/workbench/contrib/files/browser/fileCommands/save to vs/workbench/contrib/files/browser/fileConstants/save by microsoft/vscode-loc@e36740c

https://github.com/microsoft/vscode-loc/blob/a51eba0bb6e14e9b26cb7b5fed1aeca520552010/i18n/vscode-language-pack-zh-hans/translations/main.i18n.json#L6189

		"vs/workbench/contrib/files/browser/fileCommands": {
			"discard": "放弃",
			"genericRevertError": "未能还原“{0}”: {1}",
			"genericSaveError": "未能保存“{0}”: {1}",
			"modifiedLabel": "{0} (在文件中) ↔ {1}",
			"retry": "重试"
		},
		"vs/workbench/contrib/files/browser/fileConstants": {
			"newUntitledFile": "新的无标题文件",
			"removeFolderFromWorkspace": "将文件夹从工作区删除",
			"save": "保存",

It would be better to adjust the Arduino IDE internationalization code for the breaking change in the language pack API instead of adding the string to the Arduino IDE localization data.

If other regressions were caused by the breaking changes, then the same type of proper fix can be made for them as well.