Migrate the `stringifyQueryObj` function out of the BootstrapVue vendor
folder into an internal `buildQueryString` utility in `url_utils.js`.

The new utility preserves the same RFC 3986-compliant encoding behavior
(escaping `[!'()*]` and preserving commas) while replacing BSV helper
dependencies with native JS equivalents.

- Add `buildQueryString` to `src/utils/url_utils.js` with JSDoc
- Add comprehensive tests in `url_utils.spec.js`
- Update GlLink to import from the new internal utility
- Add missing test coverage for `to` prop with query and hash objects

This simplifies the properties settings in BootstrapVue components
and other files. This commit includes all table helper mixins

This simplifies the properties settings in BootstrapVue components
and other files. This commit includes the form components and helpers
with the exception of col.js and form-group.js which will be handled
in another merge request

This simplifies the properties settings in BootstrapVue components
and other files. This commit includes all remaining makeProp calls
in the dropdown

Files changed:
* popover.js
* bv-popper.js
* bv-tooltip-template.js
* bv-transition.js
* transporter.js

Files changed:
* popover.js
* bv-popper.js
* bv-tooltip-template.js
* bv-transition.js
* transporter.js

Replace makeProp with standard Vue 2 prop definitions in dropdown

See merge request !5871



Merged-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Approved-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Co-authored-by: Vanessa Otto <votto@gitlab.com>

Replace makeProp with standard Vue 2 prop definitions in table helpers

See merge request !5874



Merged-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Approved-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Co-authored-by: Vanessa Otto <votto@gitlab.com>

Replace makeProp with standard Vue 2 prop definitions in various files

See merge request !5877



Merged-by: Thomas Hutterer <thutterer@gitlab.com>
Approved-by: Thomas Hutterer <thutterer@gitlab.com>
Co-authored-by: Vanessa Otto <votto@gitlab.com>

Replace makeProp with standard Vue 2 prop definitions in forms

See merge request !5873



Merged-by: Peter Hegman <phegman@gitlab.com>
Approved-by: Peter Hegman <phegman@gitlab.com>
Co-authored-by: Vanessa Otto <votto@gitlab.com>

Replace BSV stringifyQueryObj with internal buildQueryString utility in GlLink

See merge request !5860



Merged-by: Vanessa Otto <votto@gitlab.com>
Approved-by: Vanessa Otto <votto@gitlab.com>
Reviewed-by: Vanessa Otto <votto@gitlab.com>
Reviewed-by: GitLab Duo <gitlab-duo@gitlab.com>
Co-authored-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>