[I18N] *: add config file for Weblate

We are switching our translations platform from Transifex to Weblate.
Hence, we are using a new config file to sync our translations between
GitHub and Weblate.

The `.tx/config` file will be deleted in a later commit when the
Transifex sync is shut down.

closes odoo/documentation#14134

Related: odoo/odoo#220402
Related: odoo/enterprise#90942
Related: odoo/design-themes#1119
Signed-off-by: Tiffany Chang (tic) <tic@odoo.com>

.gitignore

@@ -2,6 +2,7 @@
 *.mo
 .*
 !.gitattributes
+!.weblate.json
 
 # Sphinx build files
 _build/

.weblate.json

@@ -0,0 +1,81 @@
+{
+    "projects": {
+        "odoo-18-doc": [
+            {
+                "name": "administration",
+                "filemask": "locale/*/LC_MESSAGES/administration.po",
+                "new_base": "locale/sources/administration.pot"
+            },
+            {
+                "name": "applications",
+                "filemask": "locale/*/LC_MESSAGES/applications.po",
+                "new_base": "locale/sources/applications.pot"
+            },
+            {
+                "name": "essentials",
+                "filemask": "locale/*/LC_MESSAGES/essentials.po",
+                "new_base": "locale/sources/essentials.pot"
+            },
+            {
+                "name": "finance",
+                "filemask": "locale/*/LC_MESSAGES/finance.po",
+                "new_base": "locale/sources/finance.pot"
+            },
+            {
+                "name": "general",
+                "filemask": "locale/*/LC_MESSAGES/general.po",
+                "new_base": "locale/sources/general.pot"
+            },
+            {
+                "name": "hr",
+                "filemask": "locale/*/LC_MESSAGES/hr.po",
+                "new_base": "locale/sources/hr.pot"
+            },
+            {
+                "name": "index",
+                "filemask": "locale/*/LC_MESSAGES/index.po",
+                "new_base": "locale/sources/index.pot"
+            },
+            {
+                "name": "inventory_and_mrp",
+                "filemask": "locale/*/LC_MESSAGES/inventory_and_mrp.po",
+                "new_base": "locale/sources/inventory_and_mrp.pot"
+            },
+            {
+                "name": "marketing",
+                "filemask": "locale/*/LC_MESSAGES/marketing.po",
+                "new_base": "locale/sources/marketing.pot"
+            },
+            {
+                "name": "productivity",
+                "filemask": "locale/*/LC_MESSAGES/productivity.po",
+                "new_base": "locale/sources/productivity.pot"
+            },
+            {
+                "name": "sales",
+                "filemask": "locale/*/LC_MESSAGES/sales.po",
+                "new_base": "locale/sources/sales.pot"
+            },
+            {
+                "name": "services",
+                "filemask": "locale/*/LC_MESSAGES/services.po",
+                "new_base": "locale/sources/services.pot"
+            },
+            {
+                "name": "studio",
+                "filemask": "locale/*/LC_MESSAGES/studio.po",
+                "new_base": "locale/sources/studio.pot"
+            },
+            {
+                "name": "user_settings",
+                "filemask": "locale/*/LC_MESSAGES/settings.po",
+                "new_base": "locale/sources/settings.pot"
+            },
+            {
+                "name": "websites",
+                "filemask": "locale/*/LC_MESSAGES/websites.po",
+                "new_base": "locale/sources/websites.pot"
+            }
+        ]
+    }
+}