Added color options for highlighting search terms

Summary:
This diff builds on the previous ones by enabling other colors to be used as highlights for the search terms. Current color options are: yellow(default), red, blue, green. Possible extensions to this feature could include allow the user to enter a custom hex-color string and use that as the highlight color.

Changelog: DataTable will now have option to have its search terms highlighted in the search results by toggling and customizing the highlight colors in the menu bar

Reviewed By: mweststrate

Differential Revision: D37383163

fbshipit-source-id: c81e383c0570ef5efbf3171b92b81a8fb2e55ea7

desktop/flipper-plugin/src/ui/theme.tsx

@@ -21,7 +21,12 @@ export const theme = {
   textColorSecondary: 'var(--flipper-text-color-secondary)',
   textColorPlaceholder: 'var(--flipper-text-color-placeholder)',
   textColorActive: 'var(--light-color-button-active)',
-  searchHighlightBackground: antColors.yellow[3],
+  searchHighlightBackground: {
+    yellow: antColors.yellow[3],
+    red: antColors.red[3],
+    green: antColors.green[3],
+    blue: antColors.blue[3],
+  } as const,
   selectionBackgroundColor: 'var(--flipper-primary-background-wash)',
   disabledColor: 'var(--flipper-disabled-color)',
   backgroundDefault: 'var(--flipper-background-default)',