(core) Billing updates

Summary:
- Adding confirmation dialog when user doesn't want to cancel site
- Changing `Cancel subscription` to `Cancel plan`
- Removing `Pro` from upgrade header on pricing modal
- Better handling situation when there is no default price
- Removing mentions about sprouts program
- Removing cache for stripe plans

Test Plan: Updated tests

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D4273

static/locales/bg.client.json

@@ -499,7 +499,7 @@
         "Sign in": "Вписване",
         "To use Grist, please either sign up or sign in.": "За да използвате Grist, моля, регистрирайте се или се впишете.",
         "Visit our {{link}} to learn more about Grist.": "Посетете {{link}}, за да научите повече за Grist.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Научете повече в нашия {{helpCenterLink}} или намерете експерт чрез нашата {{sproutsProgram}}.",
+        "Learn more in our {{helpCenterLink}}.": "Научете повече в нашия {{helpCenterLink}}.",
         "Get started by creating your first Grist document.": "Започнете, като създадете първия си Grist документ.",
         "Get started by exploring templates, or creating your first Grist document.": "Започнете, като проучите образците или създадете първия си Grist документ.",
         "Invite Team Members": "Поканете членове на екипа",

static/locales/de.client.json

@@ -555,7 +555,7 @@
         "Visit our {{link}} to learn more about Grist.": "Besuchen Sie unsere {{link}}, um mehr über Grist zu erfahren.",
         "Sign in": "Anmelden",
         "To use Grist, please either sign up or sign in.": "Um Grist zu nutzen, melden Sie sich bitte an oder registrieren Sie sich.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Erfahren Sie mehr in unserem {{helpCenterLink}}, oder finden Sie einen Experten über unser {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Erfahren Sie mehr in unserem {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "Access Details": "Zugangsdetails",

static/locales/en.client.json

@@ -523,7 +523,7 @@
         "Sign in": "Sign in",
         "To use Grist, please either sign up or sign in.": "To use Grist, please either sign up or sign in.",
         "Visit our {{link}} to learn more about Grist.": "Visit our {{link}} to learn more about Grist.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Learn more in our {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "Access Details": "Access Details",

static/locales/es.client.json

@@ -471,7 +471,7 @@
         "Visit our {{link}} to learn more about Grist.": "Visita nuestra {{link}} para obtener más información sobre Grist.",
         "Sign in": "Iniciar sesión",
         "To use Grist, please either sign up or sign in.": "Para utilizar Grist, regístrate o inicia sesión.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Obtenga más información en nuestro {{helpCenterLink}}, o busque un experto a través de nuestro {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Obtenga más información en nuestro {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "Access Details": "Detalles de Acceso",

static/locales/fr.client.json

@@ -520,7 +520,7 @@
         "Visit our {{link}} to learn more about Grist.": "Visitez notre {{link}} pour en savoir plus sur Grist.",
         "Sign in": "Connexion",
         "To use Grist, please either sign up or sign in.": "Pour utiliser Grist, connectez-vous ou créez-vous un compte.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Pour en savoir plus, consultez notre {{helpCenterLink}}, ou trouvez un expert via notre {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Pour en savoir plus, consultez notre {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "All Documents": "Tous les documents",

static/locales/it.client.json

@@ -25,7 +25,7 @@
         "Visit our {{link}} to learn more about Grist.": "Vai a {{link}} per saperne di più su Grist.",
         "Sign in": "Accedi",
         "To use Grist, please either sign up or sign in.": "Per usare Grist, iscriviti o accedi.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Approfondisci nel nostro {{helpCenterLink}}, o trova un esperto con il nostro {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Approfondisci nel nostro {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "Manage Users": "Gestisci gli utenti",

static/locales/pt_BR.client.json

@@ -555,7 +555,7 @@
         "Visit our {{link}} to learn more about Grist.": "Visite nosso site {{link}} para saber mais sobre o Grist.",
         "Sign in": "Entrar",
         "To use Grist, please either sign up or sign in.": "Para usar o Grist, inscreva-se ou faça login.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Saiba mais em nosso {{helpCenterLink}}, ou encontre um especialista através do nosso {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Saiba mais em nosso {{helpCenterLink}}."
     },
     "HomeLeftPane": {
         "Access Details": "Detalhes de Acesso",

static/locales/sl.client.json

@@ -922,7 +922,7 @@
         "Visit our {{link}} to learn more about Grist.": "Obiščite našo spletno stran {{link}} da izveste več o Grisstu.",
         "Sign in": "Prijavi se",
         "To use Grist, please either sign up or sign in.": "Če želiš uporabljati Grist, se prijavi ali prvič prijavi.",
-        "Learn more in our {{helpCenterLink}}, or find an expert via our {{sproutsProgram}}.": "Izvedi več v našem {{helpCenterLink}} ali poišči strokovnjaka prek našega {{sproutsProgram}}."
+        "Learn more in our {{helpCenterLink}}.": "Izvedi več v našem {{helpCenterLink}}."
     },
     "WelcomeSitePicker": {
         "You have access to the following Grist sites.": "Imate dostop do naslednjih Grist spletnih mest .",