Add drawer for pre-scan verification

What does this MR do and why?

Describe in detail what your merge request does and why.

This partially MR resolves #376708 (closed)

It adds drawer initial state for DAST configuration page and On demand scans page

pre_scan_verification_configurator is a wrapper for a drawer and drawer trigger

Default trigger would be a status component but it can be any element since slot provides openDrawer method

Task/issue	MR
Create feature flag / lay groundwork - #376687 (closed)	!100322 (merged)
Create pre-scan verification component - #376690 (closed)	!100593 (merged)
Add drawer for pre-scan verification - #376708 (closed)	!100694 (merged)
Add status summary component to a drawer - #377509 (closed)	!100937 (merged)
Add stepped list for pre-scan verification flow - #377854 (closed)	!101257 (merged)
Add option on Scan Library page - #376705 (closed)	TBD
Add Pre-scan verification column to Scan Library tab - #376692	TBD

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

after
drawer

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Enable flag by enabling rails console in terminal

   Feature.enable(:dast_pre_scan_verification)

2. Go to BASE_URL/PROJECT_ID/-/on_demand_scans/new
3. Scroll down to a bottom of form you should see new component before submit button click on verify configuration
4. Or go to {URL}/{PROJECT_ID}/-/security/configuration/dast

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #376708 (closed)

ee/app/assets/javascripts/security_configuration/dast_pre_scan_verification/components/pre_scan_verification_icon.vue

@@ -36,22 +36,20 @@ export default {
 </script>
 
 <template>
-  <div>
-    <gl-loading-icon v-if="isInProgress" :title="status" size="lg" />
-    <div
-      v-else
-      data-testid="pre-scan-verification-icon-wrapper"
-      class="gl-w-7 gl-h-7 gl-display-flex gl-align-items-center gl-justify-content-center gl-rounded-full gl-bg-gray-100"
-      :class="bgColorClass"
-    >
-      <gl-icon
-        v-gl-tooltip
-        data-testid="pre-scan-verification-icon"
-        :class="iconColoClass"
-        :title="status"
-        :name="statusIcon"
-        :aria-label="statusIcon"
-      />
-    </div>
+  <gl-loading-icon v-if="isInProgress" :title="status" size="lg" />
+  <div
+    v-else
+    data-testid="pre-scan-verification-icon-wrapper"
+    class="gl-w-7 gl-h-7 gl-display-flex gl-align-items-center gl-justify-content-center gl-rounded-full gl-bg-gray-100"
+    :class="bgColorClass"
+  >
+    <gl-icon
+      v-gl-tooltip
+      data-testid="pre-scan-verification-icon"
+      :class="iconColoClass"
+      :title="status"
+      :name="statusIcon"
+      :aria-label="statusIcon"
+    />
   </div>
 </template>