fix(material/autocomplete): render overlay next to trigger (#32282)

Switches to rendering the autocomplete's overlay next to the trigger. This resolves some long-standing accessibility issues, because previously the overlay wasn't in the tab order.

(cherry picked from commit b33af6b)

Author: crisbeto

src/material/autocomplete/autocomplete-trigger.ts

@@ -904,7 +904,8 @@ export class MatAutocompleteTrigger
       this._getConnectedElement(),
     )
       .withFlexibleDimensions(false)
-      .withPush(false);
+      .withPush(false)
+      .withPopoverLocation('inline');
 
     this._setStrategyPositions(strategy);
     this._positionStrategy = strategy;