Store password reset requests in database (#610)

* Store password reset requests in database

Signed-off-by: Rob Watson <rfwatson@users.noreply.github.com>

* Refactor password reset request expiry handling

* Integrate sqlite

* Fix formatting

templates/session/password_reset_request_expired.rs.html

@@ -0,0 +1,9 @@
+@use template_utils::*;
+@use templates::base;
+
+@(ctx: BaseContext)
+
+@:base(ctx, i18n!(ctx.1, "Password reset"), {}, {}, {
+  <h1>@i18n!(ctx.1, "This token has expired")</h1>
+  <p>@i18n!(ctx.1, "Please start the process again by clicking") <a href="/password-reset">@i18n!(ctx.1, "here")</a>.</p>
+})