The text of some error messages in Graph widget looks strange.

1) The same messages

Steps to reproduce:

1. Add two data sets
2. For one select "Y-axis" as Left, for other as Right
3. Open Axes tab
4. Set invalid data for both axes. For example: Min as 10 and Max as 5

Result:
Two the same messages:

• Invalid parameter "Max": Y axis MAX value must be greater than Y axis MIN value.
• Invalid parameter "Max": Y axis MAX value must be greater than Y axis MIN value.

Expected:
Add for which axis this message is, for left or right

2) Message isn't in one style

Steps to reproduce:

1. Add data set and type host and item
2. Open Overrides tab
3. Add one of the override parameters, Width => 10
4. Left empty host or item field

Result:
Error message:

• Invalid parameter "Overrides/1": the parameter "hosts" is missing.

But before (still in 4.0) was the same like in Data set:

• Invalid parameter "Overrides/1/hosts": cannot be empty.

Expected:
Message text in one style for host/item fields in Data set and Override.
(I prefer "the parameter hosts is missing", it's more clear)

 3) Two messages for one mistake

Steps to reproduce:

1. Add data set and type host and item
2. Open Time period tab
3. Set custom time period
4. Type in field "From" value "now"
5. Type in field "To" value "abc"

Result:
Two error messages:

• Invalid parameter "To": a time range is expected.
• Minimum time period to display is 1 minute.

Expected:

Will be enough first message