trade_history should paginate through results

this avoids huge results

freqtrade/rpc/api_server/api_schemas.py

@@ -199,6 +199,7 @@ class OpenTradeSchema(TradeSchema):
 class TradeResponse(BaseModel):
     trades: List[TradeSchema]
     trades_count: int
+    total_trades: int
 
 
 class ForceBuyResponse(BaseModel):

freqtrade/rpc/api_server/api_v1.py

@@ -85,8 +85,8 @@ def status(rpc: RPC = Depends(get_rpc)):
 # Using the responsemodel here will cause a ~100% increase in response time (from 1s to 2s)
 # on big databases. Correct response model: response_model=TradeResponse,
 @router.get('/trades', tags=['info', 'trading'])
-def trades(limit: int = 0, rpc: RPC = Depends(get_rpc)):
-    return rpc._rpc_trade_history(limit)
+def trades(limit: int = 500, offset: int = 0, rpc: RPC = Depends(get_rpc)):
+    return rpc._rpc_trade_history(min(limit, 500), offset=offset, order_by_id=True)
 
 
 @router.get('/trade/{tradeid}', response_model=OpenTradeSchema, tags=['info', 'trading'])