[FIX] theme_bookstore: fix multiple issues in the theme

This commit fixes multiples issues in the theme:

- Wording
- Shapes that should appear only in the configurator
- Useless xpaths
- Font bug in Firefox (-> texts have been outlined in the svg)

task-4221731

closes odoo/design-themes#977

X-original-commit: f6012ce86e
Signed-off-by: Soukéina Bojabza (sobo) <sobo@odoo.com>

theme_bookstore/views/snippets/s_key_images.xml

@@ -25,7 +25,7 @@
     </xpath>
     <xpath expr="(//div[hasclass('col-lg-3')])[4]//p[3]" position="replace">
         <h5>What I Didn't Post On Instagram</h5>
-        <p class="text-muted">by <em>Christy Stockton</em></p>
+        <p class="text-muted">by <em>Chrissy Stockton</em></p>
     </xpath>
 </template>