fix(dashboard): resolve dropdown popup positioning

Author: reynoldmorel

superset-frontend/packages/superset-ui-core/src/components/Select/Select.tsx

@@ -63,6 +63,7 @@ import {
 } from './styles';
 import {
   DEFAULT_SORT_COMPARATOR,
+  DROPDOWN_ALIGN_BOTTOM,
   EMPTY_OPTIONS,
   MAX_TAG_COUNT,
   TOKEN_SEPARATORS,
@@ -779,6 +780,7 @@ const Select = forwardRef(
           {...props}
           showSearch={shouldShowSearch}
           ref={ref}
+          dropdownAlign={DROPDOWN_ALIGN_BOTTOM}
         />
       </StyledContainer>
     );

superset-frontend/packages/superset-ui-core/src/components/Select/constants.ts

@@ -33,6 +33,12 @@ export const SELECT_ALL_VALUE: RawValue = t('Select All');
 
 export const VIRTUAL_THRESHOLD = 20;
 
+export const DROPDOWN_ALIGN_BOTTOM = {
+  points: ['tl', 'bl'],
+  offset: [0, 4],
+  overflow: { adjustX: 0, adjustY: 1 },
+};
+
 export const SELECT_ALL_OPTION = {
   value: SELECT_ALL_VALUE,
   label: String(SELECT_ALL_VALUE),