The false-positive-type selector (Fires.js) and the language selector
(Profile.js) used Bootstrap's jQuery dropdown (`data-toggle="dropdown"`), the
last widgets depending on the BS4 jQuery JS that goes away with the CSS swap.
Replace both with react-bootstrap <Dropdown>/<Dropdown.Toggle>/<Dropdown.Item>
(open/close in React, no jQuery). Keeps the `.lang-selector` hook and `.btn-group`
layout; works on the current BS4 CSS.
Full-app build boots clean.
Removes the largest batch of React-19-blocking warnings: the 0.31
components (Grid, FormGroup, ControlLabel, Navbar.Header/Brand, Checkbox,
SafeAnchor) all leaned on legacy context / defaultProps.
29 files converted: Grid->Container, FormGroup/ControlLabel/FormControl/
HelpBlock -> Form.Group/Label/Control/Text, Checkbox -> Form.Check (label
as prop), bsStyle->variant (default->secondary), bsSize->size,
pull-right->float-end. Custom Col.js now re-exports v2's Col; custom
NavItem.js rewritten self-contained (no SafeAnchor/createChainedFunction);
Navigation.js drops react-bootstrap Navbar (raw markup anyway).
CSS stays on Bootstrap 4 (alexwine:bootstrap-4) for now: the BS4->5 jump
is entangled with the jQuery carousel/swipe + navbar-collapse and is
tracked as separate debt in UPGRADE.md. Only .form-label needed a shim
(forms.scss). Browser-verified home carousel+navbar, signup form + terms
checkbox, login form; REST smoke byte-identical.
Silences the dart-sass deprecation warnings that flooded every build:
- All @import of local partials (colors, mixins, and the CSS-emitting
partials) -> @use '...' as * (partials are pure defs, so 'as *' keeps the
global names and the ~25 call sites unchanged). Added explicit @use './colors'
to bootstrap-overrides.scss and cookies-eu.scss, which used -palette*
transitively (broke under @use's scoping).
- lighten(c, x%) -> color.adjust(c, $lightness: x%) and darken -> negative,
with @use 'sass:color' in the 6 affected files.
Compiles clean (byte-for-byte CSS behavior preserved).
