Update for Crowdin Integration

- Rename extracted template file to `sunshine.po`
- Add `crowdin.yml`
- Remove `--init` and `--update` from `localize.yml`
  - Crowdin will initialize new languages and update existing ones

.github/workflows/localize.yml

@@ -35,7 +35,7 @@ jobs:
 
     - name: Update Strings
       run: |
-        python ./scripts/_locale.py --extract --init --update
+        python ./scripts/_locale.py --extract
 
     - name: GitHub Commit & Push  # push changes back into nightly
       uses: actions-js/push@v1.2

crowdin.yml

@@ -0,0 +1,17 @@
+"base_path": "."
+"base_url": "https://api.crowdin.com"  # optional (for Crowdin Enterprise only)
+"preserve_hierarchy": false  # flatten tree on crowdin
+
+"files" : [
+  {
+    "source" : "/locale/*.po",
+    "translation" : "/locale/%two_letters_code%/LC_MESSAGES/%original_file_name%",
+    "languages_mapping": {
+      "two_letters_code": {
+        # map non-two letter codes here, left side is crowdin designation, right side is babel designation
+        "en-GB": "en_GB",
+        "en-US": "en_US"
+      }
+    }
+  }
+]

scripts/_locale.py

@@ -38,7 +38,7 @@ def x_extract():
     commands = [
         'xgettext',
         f'--default-domain={project_name.lower()}',
-        f'--output={os.path.join(locale_dir, project_name.lower() + ".pot")}',
+        f'--output={os.path.join(locale_dir, project_name.lower() + ".po")}',
         '--language=C++',
         '--boost',
         '--from-code=utf-8',