add prettier and have it format all fleet application code (#625)

* add prettier and have it format all js code except website:
:

* trying running prettier check in CI

* fix runs on in CI

* change CI job name

* fix prettier erros and fix CI

.github/workflows/test.yml

@@ -25,18 +25,18 @@ jobs:
           ${{ runner.os }}-modules-
 
     # It seems faster not to cache Go dependencies
-      
+
     - name: Install JS Dependencies
       run: make deps-js
 
     - name: Install Go Dependencies
       run: make deps-go
 
-    # Pre-starting dependencies here means they are ready to go when we need them. 
+    # Pre-starting dependencies here means they are ready to go when we need them.
     - name: Start Infra Dependencies
       # Use & to background this
       run: docker-compose up -d mysql_test redis mailhog saml_idp &
-      
+
     - name: Build Fleet
       run: |
         export PATH=$PATH:~/go/bin
@@ -51,7 +51,7 @@ jobs:
         make e2e-setup
         yarn cypress run --config video=false
 
-        
+
   test-js:
     strategy:
       matrix:
@@ -106,7 +106,33 @@ jobs:
     - name: Run JS Linting
       run: |
         make lint-js
-      
+
+  check-prettier:
+    strategy:
+      matrix:
+        os: [ ubuntu-latest ]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: JS Dependency Cache
+        uses: actions/cache@v2
+        with:
+          path: |
+            **/node_modules
+            ~/.cache/Cypress
+          key: ${{ runner.os }}-modules-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-modules-
+
+      - name: Install JS Dependencies
+        run: make deps-js
+
+      - name: Run prettier formatting check
+        run: |
+          yarn prettier:check
 
   test-go:
     strategy:
@@ -122,15 +148,15 @@ jobs:
     - name: Checkout Code
       uses: actions/checkout@v2
 
-    # Pre-starting dependencies here means they are ready to go when we need them. 
+    # Pre-starting dependencies here means they are ready to go when we need them.
     - name: Start Infra Dependencies
       # Use & to background this
       run: docker-compose up -d mysql_test redis &
-      
+
     # It seems faster not to cache Go dependencies
     - name: Install Go Dependencies
       run: make deps-go
-    
+
     - name: Generate static files
       run: |
         export PATH=$PATH:~/go/bin
@@ -158,4 +184,3 @@ jobs:
     - name: Run Go Linting
       run: |
         make lint-go
-