[enh] theme/simple: custom router

Lay the foundation for loading scripts granularly depending on the endpoint it's
on.

Remove vendor specific prefixes as there are now managed by browserslist and
LightningCSS.

Enabled quite a few rules in Biome that don't come in recommended to better
catch issues and improve consistency.

Related:

- https://github.com/searxng/searxng/pull/5073#discussion_r2256037965
- https://github.com/searxng/searxng/pull/5073#discussion_r2256057100

3 files changed, 30 insertions, 34 deletions

diff --git a/client/simple/tools/img.ts b/client/simple/tools/img.ts
index db4e08645..be27f03fa 100644
--- a/client/simple/tools/img.ts
+++ b/client/simple/tools/img.ts
@@ -17,24 +17,24 @@ export type Src2Dest = {
  *
  * @param items - Array of SVG files (src: SVG, dest:PNG) to convert.
  */
-export const svg2png = async (items: Src2Dest[]) => {
+export const svg2png = (items: Src2Dest[]): void => {
   for (const item of items) {
-    try {
-      fs.mkdirSync(path.dirname(item.dest), { recursive: true });
+    fs.mkdirSync(path.dirname(item.dest), { recursive: true });
 
-      const info = await sharp(item.src)
-        .png({
-          force: true,
-          compressionLevel: 9,
-          palette: true
-        })
-        .toFile(item.dest);
-
-      console.log(`[svg2png] created ${item.dest} -- bytes: ${info.size}, w:${info.width}px,  h:${info.height}px`);
-    } catch (err) {
-      console.error(`ERROR: ${item.dest} -- ${err}`);
-      throw err;
-    }
+    sharp(item.src)
+      .png({
+        force: true,
+        compressionLevel: 9,
+        palette: true
+      })
+      .toFile(item.dest)
+      .then((info) => {
+        console.log(`[svg2png] created ${item.dest} -- bytes: ${info.size}, w:${info.width}px,  h:${info.height}px`);
+      })
+      .catch((error) => {
+        console.error(`ERROR: ${item.dest} -- ${error}`);
+        throw error;
+      });
   }
 };
 
@@ -44,7 +44,7 @@ export const svg2png = async (items: Src2Dest[]) => {
  * @param items - Array of SVG files (src:SVG, dest:SVG) to optimize.
  * @param svgo_opts - Options passed to svgo.
  */
-export const svg2svg = (items: Src2Dest[], svgo_opts: Config) => {
+export const svg2svg = (items: Src2Dest[], svgo_opts: Config): void => {
   for (const item of items) {
     try {
       fs.mkdirSync(path.dirname(item.dest), { recursive: true });
@@ -54,9 +54,9 @@ export const svg2svg = (items: Src2Dest[], svgo_opts: Config) => {
 
       fs.writeFileSync(item.dest, opt.data);
       console.log(`[svg2svg] optimized: ${item.dest} -- src: ${item.src}`);
-    } catch (err) {
-      console.error(`ERROR: optimize src: ${item.src} -- ${err}`);
-      throw err;
+    } catch (error) {
+      console.error(`ERROR: optimize src: ${item.src} -- ${error}`);
+      throw error;
     }
   }
 };
diff --git a/client/simple/tools/jinja_svg_catalog.ts b/client/simple/tools/jinja_svg_catalog.ts
index 1fa1a6676..68d9a695d 100644
--- a/client/simple/tools/jinja_svg_catalog.ts
+++ b/client/simple/tools/jinja_svg_catalog.ts
@@ -1,10 +1,8 @@
 import fs from "node:fs";
 import { dirname, resolve } from "node:path";
-import { fileURLToPath } from "node:url";
 import { Edge } from "edge.js";
 import { type Config as SvgoConfig, optimize as svgo } from "svgo";
 
-const __dirname = dirname(fileURLToPath(import.meta.url));
 const __jinja_class_placeholder__ = "__jinja_class_placeholder__";
 
 // A set of icons
@@ -43,9 +41,9 @@ export type JinjaMacro = {
  * @param macros - Jinja macros to create.
  * @param items - Array of SVG items.
  */
-export const jinja_svg_catalog = (dest: string, macros: JinjaMacro[], items: IconSVG[]) => {
+export const jinja_svg_catalog = (dest: string, macros: JinjaMacro[], items: IconSVG[]): void => {
   const svg_catalog: Record<string, string> = {};
-  const edge_template = resolve(__dirname, "jinja_svg_catalog.html.edge");
+  const edge_template = resolve(import.meta.dirname, "jinja_svg_catalog.html.edge");
 
   for (const item of items) {
     // JSON.stringify & JSON.parse are used to create a deep copy of the item.svgo_opts object
@@ -63,15 +61,13 @@ export const jinja_svg_catalog = (dest: string, macros: JinjaMacro[], items: Ico
       const opt = svgo(raw, svgo_opts);
 
       svg_catalog[item.name] = opt.data;
-    } catch (err) {
-      console.error(`ERROR: jinja_svg_catalog processing ${item.name} src: ${item.src} -- ${err}`);
-      throw err;
+    } catch (error) {
+      console.error(`ERROR: jinja_svg_catalog processing ${item.name} src: ${item.src} -- ${error}`);
+      throw error;
     }
   }
 
-  fs.mkdir(dirname(dest), { recursive: true }, (err) => {
-    if (err) throw err;
-  });
+  fs.mkdirSync(dirname(dest), { recursive: true });
 
   const ctx = {
     svg_catalog: svg_catalog,
@@ -97,7 +93,7 @@ export const jinja_svg_catalog = (dest: string, macros: JinjaMacro[], items: Ico
  * @param macros - Jinja macros to create.
  * @param sets - Array of SVG sets.
  */
-export const jinja_svg_sets = (dest: string, macros: JinjaMacro[], sets: IconSet[]) => {
+export const jinja_svg_sets = (dest: string, macros: JinjaMacro[], sets: IconSet[]): void => {
   const items: IconSVG[] = [];
   const all: string[] = [];
 
diff --git a/client/simple/tools/plg.ts b/client/simple/tools/plg.ts
index 2db891d4f..20c2c4e64 100644
--- a/client/simple/tools/plg.ts
+++ b/client/simple/tools/plg.ts
@@ -20,8 +20,8 @@ export const plg_svg2png = (items: Src2Dest[]): Plugin => {
   return {
     name: "searxng-simple-svg2png",
     apply: "build",
-    async writeBundle() {
-      await svg2png(items);
+    writeBundle: () => {
+      svg2png(items);
     }
   };
 };
@@ -36,7 +36,7 @@ export const plg_svg2svg = (items: Src2Dest[], svgo_opts: Config): Plugin => {
   return {
     name: "searxng-simple-svg2svg",
     apply: "build",
-    writeBundle() {
+    writeBundle: () => {
       svg2svg(items, svgo_opts);
     }
   };