feat(V5): Update settings pages UI (#13396)

# Pull Request Template

## Description

This PR updates settings page UI


## Type of change

- [x] New feature (non-breaking change which adds functionality)


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

app/javascript/dashboard/i18n/locale/en/agentMgmt.json

@@ -9,6 +9,7 @@
       "ADMINISTRATOR": "Administrator",
       "AGENT": "Agent"
     },
+    "COUNT": "{n} agent | {n} agents",
     "LIST": {
       "404": "There are no agents associated to this account",
       "TITLE": "Manage agents in your team",
@@ -96,6 +97,8 @@
         "ERROR_MESSAGE": "Could not connect to Woot Server, Please try again later"
       }
     },
+    "SEARCH_PLACEHOLDER": "Search agents...",
+    "NO_RESULTS": "No agents found matching your search",
     "SEARCH": {
       "NO_RESULTS": "No results found."
     },