Add a python script for converting arb to csv

src/ui/flutter_app/intl_arb2csv.py

@@ -0,0 +1,23 @@
+import csv
+import json
+import os
+
+cmd_path = os.path.dirname(__file__)
+
+# Init file
+intl_name = 'intl_en'
+arb_file_path = cmd_path + '/' + 'lib/l10n/' + intl_name + '.arb'
+csv_file_path = cmd_path + '/' + 'lib/l10n/' + intl_name + '.csv'
+
+# Read arb
+with open(arb_file_path, 'r', encoding='utf8') as f:
+    intl_dict = json.load(f)
+for key in list(intl_dict):
+    if key.startswith('@') and key != '@@locale':
+        del intl_dict[key]
+# Write to csv
+with open(csv_file_path, mode='w', encoding='utf8') as csv_file:
+    fieldnames = ['key', 'string']
+    writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
+    for key in list(intl_dict):
+        writer.writerow({'key': key, 'string': intl_dict[key]})