1.9.21 Release Items

1. Sitecore - Accessibility: CHANGE - Remove placeholder text in Search boxes 
   • DOL: Homepage / Knowledge Base / Search Results
   • ReleaseTest: Homepage / Knowledge Base / Search Results
   • Accessibility-Test: Homepage / Knowledge Base / Search Results
2. WebMod - DESPP: BUG - Speaker Request Form: styling issues when submitting form
3. Sitecore - Maintenance: CHANGE CTgov portal homepage: background image updated to Spring
4. Sitecore - Maintenance: CHANGE - Sitecore patch: Security Bulletin SC2024-001-619349