[Security Solution] Renames the Investigate in Resolver Timeline action (#70634)

## [Security Solution] Renames the `Investigate in Resolver` Timeline action

- Renames the `Investigate in Resolver` Timeline action, a follow-up item from the `What's next?` section of https://github.com/elastic/kibana/pull/70111
- Fixes a CSS issue where the icon didn't align with the others on non-default row-heights

## Before

![before-investigate-in-resolver](https://user-images.githubusercontent.com/4459398/86393038-a97eeb80-bc59-11ea-9ba4-449ab20ddd25.png)

## After

![after-analyze-event](https://user-images.githubusercontent.com/4459398/86393050-ad127280-bc59-11ea-8040-7f254b0255b0.png)

Desk tested in:
- Chrome `83.0.4103.116`
- Firefox `78.0.1`
- Safari `13.1.1`

x-pack/plugins/security_solution/public/timelines/components/timeline/body/translations.ts

@@ -69,6 +69,6 @@ export const COLLAPSE = i18n.translate(
 export const ACTION_INVESTIGATE_IN_RESOLVER = i18n.translate(
   'xpack.securitySolution.timeline.body.actions.investigateInResolverTooltip',
   {
-    defaultMessage: 'Investigate in Resolver',
+    defaultMessage: 'Analyze event',
   }
 );

x-pack/plugins/security_solution/public/timelines/components/timeline/styles.tsx

@@ -204,6 +204,7 @@ export const EventsTrSupplement = styled.div.attrs(({ className = '' }) => ({
 export const EventsTdGroupActions = styled.div.attrs(({ className = '' }) => ({
   className: `siemEventsTable__tdGroupActions ${className}`,
 }))<{ actionsColumnWidth: number }>`
+  align-items: center;
   display: flex;
   flex: 0 0 ${({ actionsColumnWidth }) => `${actionsColumnWidth}px`};
   min-width: 0;