Fix Chart and Signature evaluating JS strings (#3226)

shared/data/charts.json

@@ -35,7 +35,7 @@
     "height": 18,
     "datetime": true,
     "stroke-curve": "straight",
-    "y-formatter": "val.toLocaleString(\"en-US\")",
+    "y-formatter": "thousands",
     "series": [
       {
         "name": "Mobile",
@@ -72,7 +72,7 @@
     "horizontal": true,
     "stacked": true,
     "categories": [2019, 2020, 2021, 2022, 2023, 2024, 2025],
-    "x-formatter": "val + \"K\"",
+    "x-formatter": "suffix-k",
     "series": [
       {
         "name": "North America",
@@ -122,7 +122,7 @@
     "type": "line",
     "datetime": true,
     "stroke-curve": "straight",
-    "y-formatter": "val.toLocaleString(\"en-US\")",
+    "y-formatter": "thousands",
     "series": [
       {
         "name": "Total visits",
@@ -302,7 +302,7 @@
     "stacked": true,
     "legend": true,
     "name": "Semantic colors",
-    "y-formatter": "val.toLocaleString(\"en-US\")",
+    "y-formatter": "thousands",
     "categories": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
     "series": [
       { "name": "Hit", "color": "success", "data": [18000, 19200, 21000, 20300, 22000, 16600, 15000] },