hotfix/economy-charts (#4387)

* fixes

* missing dropna on economy models, bump pywry version to override download path

* Update backend.py

* tests

* fix rare instance CHART_DIV is undefined if pywry window loads too fast

* add warning of pywry version due to json keys change

* pylint

* Update fred_view.py

* Update fred_view.py

* Update plotly_helper.py

openbb_terminal/core/plots/backend.py

@@ -51,7 +51,7 @@
 BACKEND = None
 
 
-class Backend(PyWry):
+class Backend(pywry.PyWry):
     """Custom backend for Plotly."""
 
     def __new__(cls, *args, **kwargs):  # pylint: disable=W0613
@@ -230,6 +230,14 @@ def send_table(self, df_table: pd.DataFrame, title: str = "", source: str = ""):
             Source of the data, by default ""
         """
         self.loop.run_until_complete(self.check_backend())
+        columnwidth = [
+            max(len(str(df_table[col].name)), df_table[col].astype(str).str.len().max())
+            for col in df_table.columns
+        ]
+        # we add a percentage of max to the min column width
+        columnwidth = [
+            int(x + (max(columnwidth) - min(columnwidth)) * 0.2) for x in columnwidth
+        ]
 
         if title:
             # We remove any html tags and markdown from the title

openbb_terminal/economy/fred_view.py

@@ -349,18 +349,13 @@ def plot_cpi(
         "growth_previous": "Growth Previous Period (%)",
     }
 
-    country = [
-        country.replace("_", " ").title()
-        for country in countries
-        if df.columns.str.contains(country)
-    ]
-
+    country = str(countries[0]).replace("_", " ").title()
     title = f"{'Harmonized ' if harmonized else ''} Consumer Price"
     title += (
-        f" Index for {', '.join(country)}"
-        if country
-        else " Indices"
+        " Indices"
         if len(df.columns) > 1
+        else f" Index for {country}"
+        if country
         else ""
     )