refactor: update to granular --unstable-* flags (#664)

See
https://deno.com/blog/v1.40#changes-to-how-we-handle-unstable-features

deno.json

@@ -2,20 +2,20 @@
   "lock": false,
   "tasks": {
     "init:stripe": "deno run --allow-read --allow-env --allow-net --env tasks/init_stripe.ts",
-    "db:dump": "deno run --allow-read --allow-env --unstable tasks/db_dump.ts",
-    "db:restore": "deno run --allow-read --allow-env --unstable tasks/db_restore.ts",
-    "db:seed": "deno run --allow-read --allow-env --allow-net --unstable tasks/db_seed.ts",
-    "db:migrate": "deno run --allow-read --allow-env --allow-net --unstable tasks/db_migrate.ts",
-    "db:reset": "deno run --allow-read --allow-env --unstable tasks/db_reset.ts",
-    "start": "deno run --unstable -A --watch=static/,routes/ --env dev.ts",
-    "test": "DENO_KV_PATH=:memory: deno test -A --parallel --unstable --coverage",
+    "db:dump": "deno run --allow-read --allow-env --unstable-kv tasks/db_dump.ts",
+    "db:restore": "deno run --allow-read --allow-env --unstable-kv tasks/db_restore.ts",
+    "db:seed": "deno run --allow-read --allow-env --allow-net --unstable-kv tasks/db_seed.ts",
+    "db:migrate": "deno run --allow-read --allow-env --allow-net --unstable-kv tasks/db_migrate.ts",
+    "db:reset": "deno run --allow-read --allow-env --unstable-kv tasks/db_reset.ts",
+    "start": "deno run --unstable-kv -A --watch=static/,routes/ --env dev.ts",
+    "test": "DENO_KV_PATH=:memory: deno test -A --parallel --unstable-kv --coverage",
     "check:license": "deno run --allow-read --allow-write tasks/check_license.ts",
     "check:types": "deno check **/*.ts && deno check **/*.tsx",
     "ok": "deno fmt --check && deno lint && deno task check:license --check && deno task check:types && deno task test",
     "cov:gen": "deno coverage coverage --lcov --exclude='.tsx' --output=cov.lcov",
     "update": "deno run -A -r https://fresh.deno.dev/update .",
-    "build": "deno run -A --unstable dev.ts build",
-    "preview": "deno run -A --unstable main.ts"
+    "build": "deno run -A --unstable-kv dev.ts build",
+    "preview": "deno run -A --unstable-kv main.ts"
   },
   "compilerOptions": { "jsx": "react-jsx", "jsxImportSource": "preact" },
   "imports": {