CI(GitHub Actions): add jsonlint, fix yamllint name

Summary:
Add JSONLint (not the jsonlint npm package) for json linting.
Also fix yamllint to correct job name and add `.vscode` stuff.

Signed-off-by: Yongmin Hong <revi@omglol.email>

Test Plan: Just land it.

Reviewers: O1 revi & automations, revi

Reviewed By: O1 revi & automations, revi

Differential Revision: https://issuetracker.revi.xyz/D336

.github/workflows/jsonlint.yml

@@ -0,0 +1,25 @@
+---
+name: JSON Lint
+on:
+  push:
+    paths:
+      - '**.json'
+      - '.arc*'
+      - '**.sublime-settings'
+  pull_request:
+    paths:
+      - '**.json'
+  merge_group:
+  workflow_dispatch:
+
+jobs:
+  jsonlint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout'
+        uses: actions/checkout@v4
+      - name: Run JSON Lint
+        env:
+          REPORT_ONLY: true
+          SHOW_ERRORS: true
+        run: bash <(curl -s https://raw.githubusercontent.com/CICDToolbox/json-lint/master/pipeline.sh)

.github/workflows/yamlLint.yml

@@ -14,9 +14,10 @@ on:
   workflow_dispatch:
 
 jobs:
-  lint-everything:
+  yaml-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: 'Checkout'
+        uses: actions/checkout@v4
       - name: yaml-lint
         uses: ibiqlik/action-yamllint@v3

.vscode/extensions.json

@@ -0,0 +1,9 @@
+{
+  "recommendations": [
+    "avive.arcanist",
+    "christian-kohler.npm-intellisense",
+    "editorconfig.editorconfig",
+    "esbenp.prettier-vscode",
+    "github.vscode-github-actions"
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "files.associations": {
+    "*.sublime-settings": "jsonc",
+    ".gitaliases": "ignore"
+  }
+}