fix(explore): missing column autocomplete in custom SQL

[justinpark]

SUMMARY

The keywords field was missing in the Custom SQL editor of the column item, causing the autocomplete feature in the metrics field to be unavailable.
This commit fills in the missing keywords field in the Column component and adds styling to the tooltip section of the autocomplete feature.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:

before--column-autocomplete.mov

After:

after--column-keywords.mov

TESTING INSTRUCTIONS

Open a column selector in explore
Click Custom SQL and type a column name

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[michael-s-molina]

@justinpark I noticed that src/SqlLab/components/AceEditorWrapper/index.tsx has similar logic as this code. Is it possible to avoid code duplication in this case and also ensure similar behavior for both editors by using a single component?

[justinpark]

As @michael-s-molina and I discussed offline, the SqlLab/AceEditorWrapper component has styles associated with the SqlLab Editor, and this section applies the global ace-editor styles.

[sadpandajoe]

@supersetbot label 4.1

[sadpandajoe]

@supersetbot unlabel 4.1

[justinpark]

supersetbot unlabel 4.1

@sadpandajoe Is there a reason why this was excluded from version 4.1? Could you include this commit in 4.1?

[sadpandajoe]

supersetbot unlabel 4.1

@sadpandajoe Is there a reason why this was excluded from version 4.1? Could you include this commit in 4.1?

Yeah i can grab it