[CL-428] create drawer component (#12812)

* remove private/protected/lifecycle fields from Storybook docs table

* move theme override decorator into util method

* implement base drawer component

* update bit-layout to be drawer container

* create drawer helper components

* expose new APIs to DS barrel file

* write docs

* update docs; add role input

* use host directive instead of service

* clean up logic a tad

* add start slot to story

* update docs

* Apply suggestions from code review

Co-authored-by: Victoria League <vleague@bitwarden.com>

* update docs

* Update libs/components/src/drawer/drawer.mdx

Co-authored-by: Victoria League <vleague@bitwarden.com>

* update docs / stories

* add non text element to drawer

---------

Co-authored-by: Victoria League <vleague@bitwarden.com>

libs/components/src/drawer/drawer-header.component.html

@@ -0,0 +1,15 @@
+<header class="tw-flex tw-justify-between tw-items-center">
+  <div class="tw-flex tw-items-center tw-gap-1 tw-overflow-auto">
+    <ng-content select="[slot=start]"></ng-content>
+    <h2 bitTypography="h3" noMargin class="tw-text-main tw-mb-0 tw-truncate" [attr.title]="title()">
+      {{ title() }}
+    </h2>
+  </div>
+  <button
+    bitIconButton="bwi-close"
+    type="button"
+    bitDrawerClose
+    [attr.title]="'close' | i18n"
+    [attr.aria-label]="'close' | i18n"
+  ></button>
+</header>