Add material localizations for keyboard keys used for shortcut descriptions in menus. (#99020)

This change adds some localizations for keyboard keys that will be used in creating shortcut descriptions in menus.

packages/flutter_localizations/lib/src/l10n/material_it.arb

diff --git a/packages/flutter_localizations/lib/src/l10n/material_it.arb b/packages/flutter_localizations/lib/src/l10n/material_it.arb
index 70f4e66..76a0f6d 100644
--- a/packages/flutter_localizations/lib/src/l10n/material_it.arb
+++ b/packages/flutter_localizations/lib/src/l10n/material_it.arb
@@ -82,5 +82,63 @@
   "inputTimeModeButtonLabel": "Passa alla modalità immissione testo",
   "licensesPackageDetailTextZero": "No licenses",
   "licensesPackageDetailTextOne": "1 licenza",
-  "licensesPackageDetailTextOther": "$licenseCount licenze"
+  "licensesPackageDetailTextOther": "$licenseCount licenze",
+  "keyboardKeyAlt": "Alt",
+  "keyboardKeyAltGraph": "AltGr",
+  "keyboardKeyBackspace": "Backspace",
+  "keyboardKeyCapsLock": "Caps Lock",
+  "keyboardKeyChannelDown": "Channel Down",
+  "keyboardKeyChannelUp": "Channel Up",
+  "keyboardKeyControl": "Ctrl",
+  "keyboardKeyDelete": "Del",
+  "keyboardKeyEisu": "Eisū",
+  "keyboardKeyEject": "Eject",
+  "keyboardKeyEnd": "End",
+  "keyboardKeyEscape": "Esc",
+  "keyboardKeyFn": "Fn",
+  "keyboardKeyHangulMode": "Hangul Mode",
+  "keyboardKeyHanjaMode": "Hanja Mode",
+  "keyboardKeyHankaku": "Hankaku",
+  "keyboardKeyHiragana": "Hiragana",
+  "keyboardKeyHiraganaKatakana": "Hiragana Katakana",
+  "keyboardKeyHome": "Home",
+  "keyboardKeyInsert": "Insert",
+  "keyboardKeyKanaMode": "Kana Mode",
+  "keyboardKeyKanjiMode": "Kanji Mode",
+  "keyboardKeyKatakana": "Katakana",
+  "keyboardKeyMeta": "Meta",
+  "keyboardKeyNumLock": "Num Lock",
+  "keyboardKeyNumpad1": "Num 1",
+  "keyboardKeyNumpad2": "Num 2",
+  "keyboardKeyNumpad3": "Num 3",
+  "keyboardKeyNumpad4": "Num 4",
+  "keyboardKeyNumpad5": "Num 5",
+  "keyboardKeyNumpad6": "Num 6",
+  "keyboardKeyNumpad7": "Num 7",
+  "keyboardKeyNumpad8": "Num 8",
+  "keyboardKeyNumpad9": "Num 9",
+  "keyboardKeyNumpad0": "Num 0",
+  "keyboardKeyNumpadAdd": "Num +",
+  "keyboardKeyNumpadComma": "Num ,",
+  "keyboardKeyNumpadDecimal": "Num .",
+  "keyboardKeyNumpadDivide": "Num /",
+  "keyboardKeyNumpadEnter": "Num Enter",
+  "keyboardKeyNumpadEqual": "Num =",
+  "keyboardKeyNumpadMultiply": "Num *",
+  "keyboardKeyNumpadParenLeft": "Num (",
+  "keyboardKeyNumpadParenRight": "Num )",
+  "keyboardKeyNumpadSubtract": "Num -",
+  "keyboardKeyPageDown": "PgDown",
+  "keyboardKeyPageUp": "PgUp",
+  "keyboardKeyPower": "Power",
+  "keyboardKeyPowerOff": "Power Off",
+  "keyboardKeyPrintScreen": "Print Screen",
+  "keyboardKeyRomaji": "Romaji",
+  "keyboardKeyScrollLock": "Scroll Lock",
+  "keyboardKeySelect": "Select",
+  "keyboardKeySpace": "Space",
+  "keyboardKeyZenkaku": "Zenkaku",
+  "keyboardKeyZenkakuHankaku": "Zenkaku Hankaku",
+  "keyboardKeyMetaMacOs": "Command",
+  "keyboardKeyMetaWindows": "Win"
 }