feat: Implement a command for issuing password reset links

conduwuit-example.toml

@@ -25,6 +25,9 @@
 #
 # Also see the `[global.well_known]` config section at the very bottom.
 #
+# If `client` is not set under `[global.well_known]`, the server name will be used
+# as the base domain for user-facing links (such as password reset links) created by Continuwuity.
+#
 # Examples of delegation:
 # - https://continuwuity.org/.well-known/matrix/server
 # - https://continuwuity.org/.well-known/matrix/client