This rewrites some of `GlTable`'s styles to not override CSS utils
styling.

BREAKING CHANGE: This rewrites how `GlTable`'s `TH` elements text
alignment is applied. If you were previously passing `gl-text-right` to
a table's `thClass` field option, you should migrate to the
`thAlignRight` option instead. Not migrating could cause rendering
issues in right-aligned sortable columns.

Before:

```js
const fields = [
  {
    key: "column_one",
    label: __("First column"),
    sortable: true,
    thClass: 'gl-text-right',
  },
];
```

After:

```js
const fields = [
  {
    key: "column_one",
    label: __("First column"),
    sortable: true,
    thAlignRight: true,
  },
];
```

fix(GlTable): do not override CSS utils styling

See merge request !4613



Merged-by: Paul Slaughter <pslaughter@gitlab.com>
Approved-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Approved-by: Paul Slaughter <pslaughter@gitlab.com>
Reviewed-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Co-authored-by: Paul Gascou-Vaillancourt <paul.gascvail@gmail.com>

# [94.0.0](v93.4.0...v94.0.0) (2024-09-20)

### Bug Fixes

* **GlTable:** do not override CSS utils styling ([9c3ce107](9c3ce107))

### BREAKING CHANGES

* **GlTable:** This rewrites how `GlTable`'s `TH` elements text
alignment is applied. If you were previously passing `gl-text-right` to
a table's `thClass` field option, you should migrate to the
`thAlignRight` option instead. Not migrating could cause rendering
issues in right-aligned sortable columns.

Before:

```js
const fields = [
  {
    key: "column_one",
    label: __("First column"),
    sortable: true,
    thClass: 'gl-text-right',
  },
];
```

After:

```js
const fields = [
  {
    key: "column_one",
    label: __("First column"),
    sortable: true,
    thAlignRight: true,
  },
];
```