Use Deno for speed, package locks in dev setup, github workflows

It's faster than yarn and comes with standard convenience utilities

scripts/dev_setup.sh

@@ -40,7 +40,14 @@ if [ "$DEVCONTAINER" = true ]; then
     # Install Web App using cached dependencies
     echo "Installing Web App using cached dependencies..."
     cd "$PROJECT_ROOT/src/interface/web"
-    yarn install --cache-folder /opt/yarn-cache && yarn export
+    if command -v deno &> /dev/null
+    then
+        echo "using Deno."
+        deno install && deno run ciexport
+    else
+        echo "using Yarn."
+        yarn install && yarn ciexport
+    fi
 else
     # Standard setup
     echo "Installing Server App..."
@@ -56,7 +63,14 @@ else
 
     echo "Installing Web App..."
     cd "$PROJECT_ROOT/src/interface/web"
-    yarn install && yarn export
+    if command -v deno &> /dev/null
+    then
+        echo "using Deno."
+        deno install && deno run export
+    else
+        echo "using Yarn."
+        yarn install && yarn export
+    fi
 fi
 
 # Install Obsidian App

src/interface/web/deno.json

@@ -0,0 +1,10 @@
+{
+    "tasks": {
+        "hook": "deno run --allow-read --allow-run --allow-write https://deno.land/x/deno_hooks@0.1.1/mod.ts"
+    },
+    "fmt": {
+        "indentWidth": 4,
+        "lineWidth": 100,
+        "proseWrap": "preserve"
+    }
+}

src/interface/web/package.json

@@ -6,7 +6,7 @@
         "dev": "next dev",
         "build": "next build",
         "start": "next start",
-        "lint": "next lint",
+        "lint": "deno fmt",
         "collectstatic": "bash -c 'pushd ../../../ && source .venv/bin/activate && python3 src/khoj/manage.py collectstatic --noinput && deactivate && popd'",
         "cicollectstatic": "bash -c 'pushd ../../../ && python3 src/khoj/manage.py collectstatic --noinput && popd'",
         "export": "yarn build && cp -r out/ ../../khoj/interface/built && yarn collectstatic",