Refactor data mapping in app.py to simplify opponent assignment

Removed the try-except block for mapping opponent teams, directly assigning values to 'Opp' from 'Team'. This change streamlines the code and improves clarity in data handling.

app.py

@@ -95,10 +95,8 @@ def init_baselines():
     
     hold_frame['Order'] = np.where(hold_frame['pos_group'] == 'Hitters', hold_frame['Player'].map(RHP_Info.set_index('Player')['Order']), 0)
     hold_frame['Hand'] = np.where(hold_frame['pos_group'] == 'Hitters', hold_frame['Player'].map(RHP_Info.set_index('Player')['bats']), hold_frame['Player'].map(RHH_Info.set_index('Player')['Hand']))
-    try:
-        hold_frame['Opp'] = hold_frame['Team'].map(RHH_Info.set_index('Team')['Opp'])
-    except:
-        hold_frame['Opp'] = np.nan
+    hold_frame['Opp'] = hold_frame['Team'].map(RHH_Info.set_index('Team')['Opp'])
+    
     try:
         hold_frame['Team_Total'] = hold_frame['Team'].map(RHH_Info.set_index('Opp')['Opp_TT'].drop_duplicates())
     except: