fix: incorrect capitalization in company names (#17573)

docs/self-hosting/apps/install-apps/introduction.mdx

@@ -6,10 +6,10 @@ Install desired apps in your self-hosted instance for better integration.
 
 <CardGroup cols={2}>
     <Card href="/self-hosting/apps/install-apps/google" title="Google" icon="google">
-        Install google for supporting Google Calendar and Google Meet integrations
+        Install Google for supporting Google Calendar and Google Meet integrations
     </Card>
     <Card href="/self-hosting/apps/install-apps/microsoft" title="Microsoft" icon="microsoft">
-        Install microsoft to support Exchange365 integration
+        Install Microsoft to support Exchange365 integration
     </Card>
     <Card href="/self-hosting/apps/install-apps/zoom" title="Zoom" icon="z">
         Install Zoom to support Zoom video conferencing integration
@@ -17,11 +17,11 @@ Install desired apps in your self-hosted instance for better integration.
     <Card href="/self-hosting/apps/install-apps/daily" title="Daily" icon="video">
         Install Daily to support Cal Video integration
     </Card>
-    <Card href="/self-hosting/apps/install-apps/hubspot" title="Hubspot" icon="hubspot">
-        Install Hubspot to support Hubspot CRM integration
+    <Card href="/self-hosting/apps/install-apps/hubspot" title="HubSpot" icon="hubspot">
+        Install HubSpot to support HubSpot CRM integration
     </Card>
-    <Card href="/self-hosting/apps/install-apps/sendgrid" title="Sendgrid" icon="envelope">
-        Install Sendgrid to support Sendgrid Email integration
+    <Card href="/self-hosting/apps/install-apps/sendgrid" title="SendGrid" icon="envelope">
+        Install SendGrid to support SendGrid Email integration
     </Card>
     <Card href="/self-hosting/apps/install-apps/stripe" title="Stripe" icon="stripe">
         Install Stripe to support Stripe integration for paid bookings