Revert to old onboarding system

This reverts the new onboarding introduced in PR #714 and subsequent
onboarding-related PRs (#730, #733, #736, #741).

The new onboarding work is preserved in branch: filip/new-onboarding-preserved

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: ilicfilip

assets/css/admin.css

@@ -80,24 +80,6 @@ body.toplevel_page_progress-planner {
 	margin-top: var(--prpl-padding);
 }
 
-/*------------------------------------*\
-	Styles for the container of the page when the privacy policy is not accepted.
-\*------------------------------------*/
-.prpl-pp-not-accepted {
-
-	.prpl-start-onboarding-container {
-		display: flex;
-		flex-direction: column;
-		align-items: center;
-		justify-content: center;
-		gap: var(--prpl-padding);
-	}
-
-	.prpl-start-onboarding-graphic {
-		width: 250px;
-	}
-}
-
 /*------------------------------------*\
 	Generic styles.
 \*------------------------------------*/

assets/css/onboard.css

@@ -0,0 +1,23 @@
+#prpl-onboarding-form .prpl-form-fields label {
+	display: grid;
+	grid-template-columns: 1fr 3fr;
+	margin-bottom: 0.5em;
+	gap: var(--prpl-padding);
+}
+
+#prpl-onboarding-form label > span:has(input[type="checkbox"]) {
+	display: flex;
+	align-items: baseline;
+}
+
+.prpl-onboard-form-radio-select {
+
+	label {
+		display: block !important;
+	}
+}
+
+#prpl-onboarding-submit-wrapper {
+	display: flex;
+	align-items: center;
+}