fix: Do not use custom input labels for connection positions and move start (#9932)

* fix: Do not use custom input labels on move start announcements

* fix: do not use custom input labels on input labels subset

Author: mikeharv

packages/blockly/core/block_aria_composer.ts

@@ -346,7 +346,7 @@ export function getInputLabelsSubset(block: BlockSvg, input: Input): string[] {
     .filter((input) => input.isVisible())
     .map(
       (input) =>
-        input.getLabel(Verbosity.TERSE) ||
+        input.getLabel(Verbosity.TERSE, false) ||
         Msg['INPUT_LABEL_INDEX'].replace(
           '%1',
           (input.getIndex() + 1).toString(),

packages/blockly/core/block_svg.ts

@@ -2051,7 +2051,7 @@ export class BlockSvg
       block = block.getNextBlock();
     }
     if (count <= 1) {
-      return computeAriaLabel(this, aria.Verbosity.TERSE);
+      return computeAriaLabel(this, aria.Verbosity.TERSE, false);
     }
 
     const labelTemplate = Msg['BLOCK_LABEL_STACK_BLOCKS'];