Add option to specify message rows for formspree form

Signed-off-by: Marek Pikuła <[email protected]>

exampleSite/config.yaml

@@ -359,6 +359,7 @@ params:
     #   formId: abcdefgh # Take it from your form's endpoint, like 'https://formspree.io/f/abcdefgh'
     #   emailCaption: "Enter your email address"
     #   messageCaption: "Enter your message here"
+    #   messageRows: 5
 
   footer:
     recentPosts:

layouts/partials/sections/contact.html

@@ -15,7 +15,7 @@
                                 <input type="email" class="form-control"  name="email" required="true" placeholder='{{ .Site.Params.contact.formspree.emailCaption | emojify | default "Enter your email" }}'>
                             </div>
                             <div class="form-group pt-3">
-                                <textarea class="form-control" name="message" required="true" placeholder='{{ .Site.Params.contact.formspree.messageCaption | emojify | default "Enter your message" }}' rows="3"></textarea>
+                                <textarea class="form-control" name="message" required="true" placeholder='{{ .Site.Params.contact.formspree.messageCaption | emojify | default "Enter your message" }}' rows="{{ .Site.Params.contact.formspree.messageRows | default 3 }}"></textarea>
                             </div>
                             <div class="form-group text-center pt-3">
                                 <button type="submit" class="btn">{{ .Site.Params.contact.btnName | default "Get in Touch" }}</button>