[BUG][SECURITY] Minor issues with images, links, and spaces

[nastasha-solomon]

Minor bugs discovered during today's V3 bug bash:

• https://staging-website.elastic.co/docs/solutions/security/detect-and-alert#manage-rule-dac:
  • Extra space at the start of the prebuilt rules link
  • Typo (DaCe should be DaC).
• Resize images on the following pages (most are too large):
  • https://staging-website.elastic.co/docs/solutions/security/investigate/open-manage-cases#cases-copy-case-uuid
  • https://staging-website.elastic.co/docs/solutions/security/detect-and-alert/suppress-detection-alerts#security-alert-suppression-investigate-events-for-suppressed-alerts
  • https://staging-website.elastic.co/docs/solutions/security/detect-and-alert/view-detection-alert-details#response-overview
• https://staging-website.elastic.co/docs/solutions/security/advanced-entity-analytics/asset-criticality#_view_and_assign_asset_criticality: The Asset criticality API ref is italicized.