chore: fix more lint (#5700)

* chore: fix 918 violations of comma-dangle rule

* chore: fix 2 violations of comma-spacing

* chore: fix 13 violations of padded-blocks

* chore: fix 50 violations of block-spacing

* chore: fix one violation of semi-spacing

* chore: fix 4 violations of space-before-blocks

* chore: fix 38 violations of object-curly-spacing

* chore: fix 30 violations of key-spacing

* chore: fix 3 violations of quote-props

* chore: fix 5 violations of arrow-parens

* chore: fix 8 violations of no-tabs

* chore: allow uncommented helper functions in mocha tests

* chore: fix several more lint errors

* chore: tweak eslint configuration in core and tests

* chore: rebuild for tests

scripts/migration/renamings.js

@@ -216,7 +216,7 @@ const renamings = {
     'Blockly.Blocks.texts': {module: 'Blockly.blocks.texts'},
     'Blockly.Blocks.variables': {module: 'Blockly.blocks.variables'},
     // Blockly.Blocks.variablesDynamic not previously provided.
-  }
+  },
 };
 
 exports.renamings = renamings;