Move Biome config to project root

Resolves nested root configuration error in CI by moving biome.json
from .config/ to project root. Updates ESLint config path reference.

Author: jdalton

.config/eslint.config.mjs

@@ -27,7 +27,7 @@ const nodeGlobalsConfig = Object.fromEntries(
   Object.entries(globals.node).map(([k]) => [k, 'readonly']),
 )
 
-const biomeConfigPath = path.join(rootPath, '.config', 'biome.json')
+const biomeConfigPath = path.join(rootPath, 'biome.json')
 const biomeConfig = require(biomeConfigPath)
 const biomeIgnores = {
   name: `Imported biome.json ignore patterns`,

.config/biome.json biome.json.config/biome.json renamed to biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "../node_modules/@biomejs/biome/configuration_schema.json",
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
   "root": true,
   "files": {
     "includes": [