feat: search options (#540)

* feat: search options

* feat: sanitize folder names

* fix: add cursor: pointer to switch

* fix: explicitly make the search bar a text input

* refactor: remove magic number

* refactor: extract Switch component to its own file

* refactor: split AppState into multiple files

* refactor: review comments

app/assets/javascripts/components/Switch.tsx

@@ -0,0 +1,48 @@
+import { ComponentChildren, FunctionalComponent } from 'preact';
+import { useState } from 'preact/hooks';
+import { HTMLProps } from 'react';
+import {
+  CustomCheckboxContainer,
+  CustomCheckboxInput,
+  CustomCheckboxInputProps,
+} from '@reach/checkbox';
+import '@reach/checkbox/styles.css';
+
+export type SwitchProps = HTMLProps<HTMLInputElement> & {
+  checked?: boolean;
+  onChange: (checked: boolean) => void;
+  children: ComponentChildren;
+};
+
+export const Switch: FunctionalComponent<SwitchProps> = (
+  props: SwitchProps
+) => {
+  const [checkedState, setChecked] = useState(props.checked || false);
+  const checked = props.checked ?? checkedState;
+  return (
+    <label className="sn-component flex justify-between items-center cursor-pointer hover:bg-contrast py-2 px-3">
+      {props.children}
+      <CustomCheckboxContainer
+        checked={checked}
+        onChange={(event) => {
+          setChecked(event.target.checked);
+          props.onChange(event.target.checked);
+        }}
+        className={`sn-switch ${checked ? 'bg-info' : 'bg-secondary-contrast'}`}
+      >
+        <CustomCheckboxInput
+          {...({
+            ...props,
+            children: undefined,
+          } as CustomCheckboxInputProps)}
+        />
+        <span
+          aria-hidden
+          className={`sn-switch-handle ${
+            checked ? 'sn-switch-handle-right' : ''
+          }`}
+        />
+      </CustomCheckboxContainer>
+    </label>
+  );
+};