[IMP] themes_*: rewrite some messages and fix typos

Themes translation in Odoo 16 have been lost, they were not exported on
Transifex anymore (bug).

We just added back the repository on it, and our internal translators
are working on those translations.

They found some typos and bad wording which are fixed here.

Technically, note that we need the themes fully translated for the
chatGPT integration coming in website configurator.
Indeed, if a theme is not (almost fully) translated, it won't be using
chatGPT for text replacement.
This is because if we ask chatGPT to do text replacement and translation
at the same time, it just provides bad results.
See https://github.com/odoo/odoo/pull/137703

closes odoo/design-themes#718

X-original-commit: 7cdb6d2ab7
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>
Signed-off-by: Romain Derie (rde) <rde@odoo.com>

theme_aviato/views/snippets/s_three_columns.xml

@@ -11,7 +11,7 @@
         <img class="position-relative d-block img-fluid figure-img rounded shadow-lg w-100" style="height:50vh; object-fit:cover; z-index:2;" src="/web/image/website.s_three_columns_default_image_1" alt="s_three_columns_1"/>
         <div class="card-wrapper shadow-lg position-relative p-4 bg-white rounded-3 mt-n4" style="z-index:1;">
             <h4 class="card-title mt-4">Paris</h4>
-            <p>Paris' monument-lined boulevards, museums, classical bistros and boutiques are enhanced by a new wave of multimedia galleries, creative wine bars..</p>
+            <p>Paris' monument-lined boulevards, museums, classical bistros and boutiques are enhanced by a new wave of multimedia galleries, creative wine bars...</p>
             <a href="#" class="btn btn-primary mb-2">Book now</a>
         </div>
     </xpath>
@@ -22,7 +22,7 @@
             <h4 class="card-title mt-4">Rome</h4>
             <p>A heady mix of haunting ruins, awe-inspiring art and vibrant street life, Italy’s hot-blooded capital is one of the world’s most romantic and charismatic cities.</p>
             <a href="#" class="btn btn-primary mb-2">Book now</a>
-        </div> 
+        </div>
     </xpath>
     <!-- Column #03 -->
     <xpath expr="//div[hasclass('row')]/div[3]/div" position="replace">