[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, 2 deletions

diff --git a/searx/static/themes/simple/js/infinite_scroll.min.js b/searx/static/themes/simple/js/infinite_scroll.min.js
deleted file mode 100644
index 9c619334f..000000000
--- a/searx/static/themes/simple/js/infinite_scroll.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-import{n as e,o as t,r as n}from"./searxng.core.min.js";var r=()=>Object.assign(document.createElement(`div`),{className:`loader`}),i=async(i,a)=>{let o=document.querySelector(`#search`);e(o);let s=document.querySelector(`#pagination form.next_page`);e(s);let c=o.getAttribute(`action`);if(!c)throw Error(`Form action not defined`);let l=document.querySelector(`#pagination`);e(l),l.replaceChildren(r());try{let e=await(await n(`POST`,c,{body:new FormData(s)})).text();if(!e)return;let t=new DOMParser().parseFromString(e,`text/html`),r=t.querySelectorAll(`#urls article`),o=t.querySelector(`#pagination`);document.querySelector(`#pagination`)?.remove();let l=document.querySelector(`#urls`);if(!l)throw Error(`URLs element not found`);r.length>0&&!i&&l.appendChild(document.createElement(`hr`)),l.append(...Array.from(r)),o&&(document.querySelector(`#results`)?.appendChild(o),a())}catch(e){console.error(`Error loading next page:`,e);let n=Object.assign(document.createElement(`div`),{textContent:t.translations?.error_loading_next_page??`Error loading next page`,className:`dialog-error`});n.setAttribute(`role`,`alert`),document.querySelector(`#pagination`)?.replaceChildren(n)}},a=document.getElementById(`results`);if(!a)throw Error(`Results element not found`);var o=a.classList.contains(`only_template_images`),s=`article.result:last-child`,c=new IntersectionObserver(e=>{let[t]=e;t?.isIntersecting&&(c.unobserve(t.target),i(o,()=>{let e=document.querySelector(s);e&&c.observe(e)}).then(()=>{}))},{rootMargin:`320px`}),l=document.querySelector(s);l&&c.observe(l);
-//# sourceMappingURL=infinite_scroll.min.js.map
\ No newline at end of file