[mod] client/simple: client plugins (#5406)

* [mod] client/simple: client plugins

Defines a new interface for client side *"plugins"* that coexist with server
side plugin system. Each plugin (e.g., `InfiniteScroll`) extends the base
`ts Plugin`. Client side plugins are independent and lazy‑loaded via `router.ts`
when their `load()` conditions are met. On each navigation request, all
applicable plugins are instanced.

Since these are client side plugins, we can only invoke them once DOM is fully
loaded. E.g. `Calculator` will not render a new `answer` block until fully
loaded and executed.

For some plugins, we might want to handle its availability in `settings.yml`
and toggle in UI, like we do for server side plugins. In that case, we extend
`py Plugin` instancing only the information and then checking client side if
[`settings.plugins`](https://github.com/inetol/searxng/blob/1ad832b1dc33f3f388da361ff2459b05dc86a164/client/simple/src/js/toolkit.ts#L134)
array has the plugin id.

* [mod] client/simple: rebuild static

1 files changed, 0 insertions, 28 deletions

diff --git a/client/simple/src/js/pkg/ol.ts b/client/simple/src/js/pkg/ol.ts
deleted file mode 100644
index 28eed3c03..000000000
--- a/client/simple/src/js/pkg/ol.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-License-Identifier: AGPL-3.0-or-later
-
-import { Feature, Map as OlMap, View } from "ol";
-import { createEmpty } from "ol/extent";
-import { GeoJSON } from "ol/format";
-import { Point } from "ol/geom";
-import { Tile as TileLayer, Vector as VectorLayer } from "ol/layer";
-import { fromLonLat } from "ol/proj";
-import { OSM, Vector as VectorSource } from "ol/source";
-import { Circle, Fill, Stroke, Style } from "ol/style";
-
-export {
-  View,
-  OlMap,
-  TileLayer,
-  VectorLayer,
-  OSM,
-  createEmpty,
-  VectorSource,
-  Style,
-  Stroke,
-  Fill,
-  Circle,
-  fromLonLat,
-  GeoJSON,
-  Feature,
-  Point
-};