try extracting en-US.po only in the github workflow

.github/workflows/crowdin.yaml

@@ -17,6 +17,18 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
+      - name: Set up node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Extract translations
+        run: "yarn lingui extract --locale en-US"
+
       - name: Synchronize
         uses: crowdin/github-action@1.1.0
         with:

.gitignore

@@ -6,6 +6,7 @@
 /src/locales/**/*.js
 /src/locales/**/*.ts
 /src/locales/**/*.json
+/src/locales/**/en-US.po
 
 # dependencies
 /node_modules

package.json

@@ -126,8 +126,7 @@
     "compile-contract-types": "yarn compile-external-abi-types && yarn compile-v3-contract-types",
     "compile-external-abi-types": "typechain --target ethers-v5 --out-dir src/abis/types './src/abis/**/*.json'",
     "compile-v3-contract-types": "typechain --target ethers-v5 --out-dir src/types/v3 './node_modules/@uniswap/?(v3-core|v3-periphery)/artifacts/contracts/**/*.json'",
-    "build": "yarn compile-contract-types yarn i18n:extract && yarn i18n:compile && react-scripts build",
+    "build": "yarn compile-contract-types && yarn i18n:compile && react-scripts build",
-    "i18n:extract": "lingui extract --locale en-US --overwrite",
     "i18n:compile": "lingui compile",
     "integration-test": "start-server-and-test 'serve build -l 3000' http://localhost:3000 'cypress run'",
     "postinstall": "yarn compile-contract-types",

src/hooks/useActiveLocale.ts

@@ -10,7 +10,7 @@ import useParsedQueryString from './useParsedQueryString'
 function parseLocale(maybeSupportedLocale: string): SupportedLocale | undefined {
   const lowerMaybeSupportedLocale = maybeSupportedLocale.toLowerCase()
   return SUPPORTED_LOCALES.find(
-    (locale) => locale.toLowerCase() === lowerMaybeSupportedLocale || locale.slice(0, 2) === lowerMaybeSupportedLocale
+    (locale) => locale.toLowerCase() === lowerMaybeSupportedLocale || locale.split('-')[0] === lowerMaybeSupportedLocale
   )
 }