fix: Missing spacing in adhoc filters popover

[kgabryje]

SUMMARY

Fix missing margins around Select component in Adhoc Filter popover.

Missing semicolon resulted in a conditional expression adding a prefix undefined to styles added with css prop, which caused the margins in adhoc filters popover to not be displayed (in CSS, instead of margin-bottom: 16px; we had undefined margin-bottom: 16px;)

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:

After:

TESTING INSTRUCTIONS

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]

LGTM

[codecov]

Codecov Report

Merging #22346 (20d29c0) into master (e1ffdb9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #22346   +/-   ##
=======================================
  Coverage   66.85%   66.85%           
=======================================
  Files        1847     1847           
  Lines       70561    70561           
  Branches     7737     7737           
=======================================
  Hits        47174    47174           
  Misses      21380    21380           
  Partials     2007     2007           

Flag	Coverage Δ
javascript	53.80% <ø> (ø)

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Impacted Files	Coverage Δ
superset-frontend/src/components/Select/styles.tsx	82.60% <ø> (ø)

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