Fix VITE_SUPPORT_URL contact link (#1398)

Author: davinotdavid

frontend/.env.prod.example

@@ -21,7 +21,7 @@ VITE_REPORT_BUG_URL=https://github.com/thunderbird/appointment/issues/new?assign
 # If the browser's hour setting is empty or missing fallback to this value
 VITE_DEFAULT_HOUR_FORMAT=12
 
-VITE_SUPPORT_URL=https://accounts.tb.pro/contact/
+VITE_SUPPORT_URL=https://accounts.tb.pro/contact
 
 VITE_OIDC_CLIENT_ID=thunderbird-appointment-frontend
 VITE_OIDC_ROOT_URL=https://auth.tb.pro/realms/tbpro/

frontend/.env.stage.example

@@ -21,7 +21,7 @@ VITE_REPORT_BUG_URL=https://github.com/thunderbird/appointment/issues/new?assign
 # If the browser's hour setting is empty or missing fallback to this value
 VITE_DEFAULT_HOUR_FORMAT=12
 
-VITE_SUPPORT_URL=https://accounts-stage.tb.pro/contact/
+VITE_SUPPORT_URL=https://accounts-stage.tb.pro/contact
 
 VITE_OIDC_CLIENT_ID=thunderbird-appointment-frontend
 VITE_OIDC_ROOT_URL=https://auth-stage.tb.pro/realms/tbpro/