It appears you have a well-structured Git repository with various files, including SVG icons and HTML documents. Here's a brief overview:

backend/node_modules/svgo/lib/svgo.d.ts

@@ -0,0 +1,69 @@
+import type { StringifyOptions, DataUri, Plugin as PluginFn } from './types';
+import type {
+  BuiltinsWithOptionalParams,
+  BuiltinsWithRequiredParams,
+} from '../plugins/plugins-types';
+
+type CustomPlugin = {
+  name: string;
+  fn: PluginFn<void>;
+};
+
+type PluginConfig =
+  | keyof BuiltinsWithOptionalParams
+  | {
+      [Name in keyof BuiltinsWithOptionalParams]: {
+        name: Name;
+        params?: BuiltinsWithOptionalParams[Name];
+      };
+    }[keyof BuiltinsWithOptionalParams]
+  | {
+      [Name in keyof BuiltinsWithRequiredParams]: {
+        name: Name;
+        params: BuiltinsWithRequiredParams[Name];
+      };
+    }[keyof BuiltinsWithRequiredParams]
+  | CustomPlugin;
+
+export type Config = {
+  /** Can be used by plugins, for example prefixids */
+  path?: string;
+  /** Pass over SVGs multiple times to ensure all optimizations are applied. */
+  multipass?: boolean;
+  /** Precision of floating point numbers. Will be passed to each plugin that supports this param. */
+  floatPrecision?: number;
+  /**
+   * Plugins configuration
+   * ['preset-default'] is default
+   * Can also specify any builtin plugin
+   * ['sortAttrs', { name: 'prefixIds', params: { prefix: 'my-prefix' } }]
+   * Or custom
+   * [{ name: 'myPlugin', fn: () => ({}) }]
+   */
+  plugins?: PluginConfig[];
+  /** Options for rendering optimized SVG from AST. */
+  js2svg?: StringifyOptions;
+  /** Output as Data URI string. */
+  datauri?: DataUri;
+};
+
+type Output = {
+  data: string;
+};
+
+/** The core of SVGO */
+export declare function optimize(input: string, config?: Config): Output;
+
+/**
+ * If you write a tool on top of svgo you might need a way to load svgo config.
+ *
+ * You can also specify relative or absolute path and customize current working directory.
+ */
+export declare function loadConfig(
+  configFile: string,
+  cwd?: string,
+): Promise<Config>;
+export declare function loadConfig(
+  configFile?: null,
+  cwd?: string,
+): Promise<Config | null>;