Translations - Propsoal for ease comparison english/other languages

[bovirus]

@derjanb

Could you please consdier to leave in not english language the following strings

"extName": {
    "message": "Tampermonkey"
},
"extNameBeta": {
    "message": "Tampermonkey BETA"
},
"extNameLegacy": {
    "message": "Tampermonkey Legacy"
},
"extNameClassic": {
    "message": "Tampermonkey Classic"
},
"extShortName": {
    "message": "Tampermonkey"
},
"extShortNameBeta": {
    "message": "TM BETA"
},
"extShortNameLegacy": {
    "message": "TM Legacy"
},
"extShortNameClassic": {
    "message": "TM Classic"
},

In this way it's easier to compare english language with other language (ex. italian) to search changes/missing/new lines.

Thanks.