rebrand: Workavia Mail (tier 1+2+3+4)

Tier 1+2 - web/UI user-facing:
- Replace all visible "Twake Mail" / "Linagora" with "Workavia Mail"
- Swap 3 logo SVGs (icon kept, wordmark replaced via SVG <text>)
- Splash: replace icon_twp.png with HTML <div>Workavia</div>
- Remove power_by_linagora.svg, replace with AGPL SourceLinkWidget
- Patch web/index.html, manifest.json, login/logout-callback HTMLs
- Patch all 16 ARB locales + scribe ARB + app_localizations.dart
- Patch 4 web/i18n/*.json (FR/EN/DE/VI smart banner titles)
- App grid reduced to "Mail" + "Calendar"
- User-Agent: Twake-Mail -> Workavia-Mail

Tier 3+4 - mobile native:
- Bundle ID: com.linagora.{android,ios}.teammail -> com.workavia.mail
- URL schemes consolidated: teammail.mobile/twakemail.mobile -> workaviamail.mobile
- Android: applicationId, namespace, AndroidManifest, strings.xml
- Android: move Kotlin sources com.linagora.android.tmail -> com.workavia.mail
- Android: empty branding.xml + android12branding.xml (vector text not patchable)
- iOS: Info.plist (CFBundleDisplayName/Name, schemes), Runner.entitlements
- iOS: TwakeMailNSE + TeamMailShareExtension entitlements + Info.plist
- iOS: Runner.xcodeproj (12x PRODUCT_BUNDLE_IDENTIFIER, 9x APP_GROUP_ID)
- iOS: TokenRefreshManager.swift redirect URLs
- iOS: fastlane Appfile + Matchfile
- Dart: oidc_constant, app_config keychain, notification MethodChannel

Known follow-ups (require user action):
- Apple Team ID KUT463DS29 (still Linagora) -> needs Workavia team for App Store
- Android branding.xml emptied: need PNG/path-converted wordmark for splash
- iOS sub-bundle paths (TwakeMailNSE/, TeamMailShareExtension/) on disk unchanged
- iOS App Store URL emptied; Play Store ID points to com.workavia.mail

lib/l10n/intl_ga.arb

@@ -605,7 +605,7 @@
       "count": {}
     }
   },
-  "appTitlePushNotification": "Twake Mail",
+  "appTitlePushNotification": "V-Mail",
   "@appTitlePushNotification": {
     "type": "text",
     "placeholders_order": [],
@@ -923,7 +923,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "page_name": "Twake Mail",
+  "page_name": "V-Mail",
   "@page_name": {
     "type": "text",
     "placeholders_order": [],
@@ -1593,7 +1593,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "login_text_slogan": "Twake Mail",
+  "login_text_slogan": "V-Mail",
   "@login_text_slogan": {
     "type": "text",
     "placeholders_order": [],
@@ -2163,7 +2163,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "allowsTwakeMailToNotifyYouWhenANewMessageArrivesOnYourPhone": "Ceadaíonn Twake Mail a chur in iúl duit nuair a thagann teachtaireacht nua ar do ghuthán",
+  "allowsTwakeMailToNotifyYouWhenANewMessageArrivesOnYourPhone": "Ceadaíonn V-Mail a chur in iúl duit nuair a thagann teachtaireacht nua ar do ghuthán",
   "@allowsTwakeMailToNotifyYouWhenANewMessageArrivesOnYourPhone": {
     "type": "text",
     "placeholders_order": [],
@@ -2387,7 +2387,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "languageSubtitle": "Socraigh an teanga a úsáideann tú ar Twake Mail.",
+  "languageSubtitle": "Socraigh an teanga a úsáideann tú ar V-Mail.",
   "@languageSubtitle": {
     "type": "text",
     "placeholders_order": [],
@@ -2423,7 +2423,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "bannerProgressingRecoveryMessage": "Tá an téarnamh ar siúl. Is féidir leat leanúint ar aghaidh ag baint úsáide as Twake Mail",
+  "bannerProgressingRecoveryMessage": "Tá an téarnamh ar siúl. Is féidir leat leanúint ar aghaidh ag baint úsáide as V-Mail",
   "@bannerProgressingRecoveryMessage": {
     "type": "text",
     "placeholders_order": [],
@@ -2615,7 +2615,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "pleaseAllowNotifications": "Ceadaigh fógraí ó Twake Mail i Socruithe an ghléis",
+  "pleaseAllowNotifications": "Ceadaigh fógraí ó V-Mail i Socruithe an ghléis",
   "@pleaseAllowNotifications": {
     "type": "text",
     "placeholders_order": [],
@@ -3017,7 +3017,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "app_name": "Twake Mail",
+  "app_name": "V-Mail",
   "@app_name": {
     "type": "text",
     "placeholders_order": [],
@@ -3163,7 +3163,7 @@
       "emailAddress": {}
     }
   },
-  "createTwakeIdFailed": "Theip ar Cruthaigh Twake ID. Seiceáil arís le do thoil.",
+  "createTwakeIdFailed": "Theip ar Cruthaigh Workavia ID. Seiceáil arís le do thoil.",
   "@createTwakeIdFailed": {
     "type": "text",
     "placeholders_order": [],
@@ -3485,7 +3485,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "createTwakeId": "Cruthaigh ID Twake",
+  "createTwakeId": "Cruthaigh ID Workavia",
   "@createTwakeId": {
     "type": "text",
     "placeholders_order": [],
@@ -4795,13 +4795,13 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "quotaBannerWarningSubtitleWithPremium": "Chun leanúint ar aghaidh ag seoladh teachtaireachtaí agus ag baint taitneamh as gach gné de Twake Mail, smaoinigh ar do stóras a ghlanadh nó a uasghrádú.",
+  "quotaBannerWarningSubtitleWithPremium": "Chun leanúint ar aghaidh ag seoladh teachtaireachtaí agus ag baint taitneamh as gach gné de V-Mail, smaoinigh ar do stóras a ghlanadh nó a uasghrádú.",
   "@quotaBannerWarningSubtitleWithPremium": {
     "type": "text",
     "placeholders_order": [],
     "placeholders": {}
   },
-  "quotaBannerWarningSubtitleWithoutPremium": "Chun leanúint ar aghaidh ag seoladh teachtaireachtaí agus ag baint taitneamh as gach gné de Twake Mail, smaoinigh ar ghlanadh suas.",
+  "quotaBannerWarningSubtitleWithoutPremium": "Chun leanúint ar aghaidh ag seoladh teachtaireachtaí agus ag baint taitneamh as gach gné de V-Mail, smaoinigh ar ghlanadh suas.",
   "@quotaBannerWarningSubtitleWithoutPremium": {
     "type": "text",
     "placeholders_order": [],
@@ -5233,7 +5233,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "manageYourTwakeAccount": "Bainistigh do chuntas Twake",
+  "manageYourTwakeAccount": "Bainistigh do chuntas Workavia",
   "@manageYourTwakeAccount": {
     "type": "text",
     "placeholders_order": [],