Update no-hosts empty states copy (#16943)

Simple copy updates per
https://github.com/fleetdm/fleet/pull/16908#discussion_r1493009227

Co-authored-by: Jacob Shandling <jacob@fleetdm.com>

frontend/pages/SoftwarePage/SoftwareOSDetailsPage/SoftwareOSDetailsPage.tsx

@@ -173,7 +173,7 @@ const SoftwareOSDetailsPage = ({
         {osVersionDetails.hosts_count === 0 ? (
           <DetailsNoHosts
             header="OS not detected"
-            details={`No host ${teamIdForApi ? "on this team " : ""}has ${
+            details={`No hosts ${teamIdForApi ? "on this team " : ""}have ${
               osVersionDetails.name
             } installed.`}
           />

frontend/pages/SoftwarePage/SoftwareTitleDetailsPage/SoftwareTitleDetailsPage.tsx

@@ -120,7 +120,7 @@ const SoftwareTitleDetailsPage = ({
         {softwareTitle.hosts_count === 0 ? (
           <DetailsNoHosts
             header="Software not detected"
-            details={`No host ${teamIdForApi ? "on this team " : ""}has ${
+            details={`No hosts ${teamIdForApi ? "on this team " : ""}have ${
               softwareTitle.name
             } installed.`}
           />

frontend/pages/SoftwarePage/SoftwareVersionDetailsPage/SoftwareVersionDetailsPage.tsx

@@ -141,9 +141,9 @@ const SoftwareVersionDetailsPage = ({
         {softwareVersion.hosts_count === 0 ? (
           <DetailsNoHosts
             header="Software not detected"
-            details={`No host ${
+            details={`No hosts ${
               teamIdForApi ? "on this team " : ""
-            }has this software installed.`}
+            }have this software installed.`}
           />
         ) : (
           <Card

frontend/pages/SoftwarePage/SoftwareVulnerabilityDetailsPage/SoftwareVulnerabilityDetailsPage.tsx

@@ -98,9 +98,9 @@ const SoftwareVulnerabilityDetailsPage = ({
         return (
           <DetailsNoHosts
             header="Vulnerability not detected"
-            details={`No host ${
+            details={`No hosts ${
               teamIdForApi ? "on this team " : ""
-            }is affected by ${vuln.cve}.`}
+            }are affected by ${vuln.cve}.`}
           />
         );
       }