Standardise casing of identity server

Replace instances of 'Identity Server' with 'Identity server', when at start of
sentence, or 'identity server' when not.

Signed-off-by: Paulo Pinto <paulo.pinto@automattic.com>

src/components/views/dialogs/TermsDialog.tsx

@@ -90,7 +90,7 @@ export default class TermsDialog extends React.PureComponent<ITermsDialogProps,
     private nameForServiceType(serviceType: SERVICE_TYPES, host: string): JSX.Element {
         switch (serviceType) {
             case SERVICE_TYPES.IS:
-                return <div>{_t("Identity Server")}<br />({host})</div>;
+                return <div>{_t("Identity server")}<br />({host})</div>;
             case SERVICE_TYPES.IM:
                 return <div>{_t("Integration Manager")}<br />({host})</div>;
         }