[DataGrid] Remove trailing spaces in filter input

[alexfauquette]

Fix #5275

The dev proposed that when entering "is ok " the filter applies with "is ok" (without the last space)

[mui-bot]

These are the results for the performance tests:

Test case	Unit	Min	Max	Median	Mean	σ
Filter 100k rows	ms	287.8	581.8	487.2	437.46	112.818
Sort 100k rows	ms	479.4	983.3	913.2	826.94	185.574
Select 100k rows	ms	129.9	264.6	215.1	213.18	48.366
Deselect 100k rows	ms	112.7	199.3	134.4	151.44	33.061

Generated by 🚫 dangerJS against 31c8f03

[m4theushw]

Wouldn't be better to trim inside the operator? If filterModel.items.value contains space it shows no result: https://codesandbox.io/s/controlledfilters-demo-mui-x-forked-84qzhq?file=/demo.tsx

[alexfauquette]

@m4theushw My concern was about how to disable the trim if I want to take into account the last space?

We can simply pass prop to the Input component, but accessing to the filtering engine seems a bit more complicated

[m4theushw]

We can add an argument to getGridStringOperators. To disable the trim, developers only need to override the operators. What do you think?

diff --git a/packages/grid/x-data-grid/src/colDef/gridStringOperators.ts b/packages/grid/x-data-grid/src/colDef/gridStringOperators.ts
index b6ccd38b5..f97a44e06 100644
--- a/packages/grid/x-data-grid/src/colDef/gridStringOperators.ts
+++ b/packages/grid/x-data-grid/src/colDef/gridStringOperators.ts
@@ -15,7 +15,7 @@ export const getGridStringQuickFilterFn = (value: any) => {
   };
 };
 
-export const getGridStringOperators = (): GridFilterOperator<
+export const getGridStringOperators = (disableTrim: boolean = false): GridFilterOperator<
   any,
   number | string | null,
   any

[m4theushw]

Much cleaner now.