chore(style,grammar) add eslint configuration file (#238)

Most tree-sitter eslint configurations do not include `eslint-prettier`
which I suspect is why some tree-sitter-eslint style guides were being
overridden.

This PR removes the prettier config and file and applies formatting to
resembled more popular tree-sitter grammars.


https://github.com/tree-sitter/tree-sitter-rust/blob/master/eslint.config.mjs


https://github.com/tree-sitter/tree-sitter-rust/blob/261b20226c04ef601adbdf185a800512a5f66291/grammar.js#L129

https://github.com/tree-sitter/tree-sitter-rust/blob/master/grammar.js#L136

Author: mkatychev

.github/workflows/lint.yml

@@ -22,7 +22,7 @@ jobs:
           node-version: ${{vars.NODE_VERSION}}
       - name: Install modules
         run: npm ci --legacy-peer-deps
-      - name: Run ESLint
+      - name: Run ESLint linter
         run: npm run lint
-      - name: Run Prettier
+      - name: Run ESLint formatter
         run: npm run format

eslint.config.mjs

@@ -1,4 +1,5 @@
 import treesitter from 'eslint-config-treesitter';
-import prettier from 'eslint-config-prettier';
 
-export default [...treesitter, prettier];
+export default [
+  ...treesitter,
+];