[IMP] theme_*: restore base snippet shapes that do not connect blocks

In [1] all shapes were moved from the base snippet to the specific
configurator snippet. This was a bit overkill.

This commit reverts this partially so that only shapes that connect
with each other are specific to the configurator, but "intra-block"
shapes are restored onto the base snippet.
The "New page from template" snippets are adapted accordingly in order
to produce the same output as before this commit.

Restored shapes are: (label (image))
- Origins: 12 (18)
- Blob: 11 (11)
- Airy: 03 (03_001), 04 (04_001), 07 (07), 10 (10), 11 (11), 14 (14)
- Zigs: 01 (01_001), 02 (02_001)
- Wavy: 04 (10), 15 (11)
- Blocks: 02 (01_001)
- Rainy: 03 (06), 05 (10), 09 (08_001), 10 (09_001)
- Floats: all

[1]: https://github.com/odoo/design-themes/commit/d206c119720d557c11320ebb3d7339890b8f9efa

task-3555325

closes odoo/design-themes#726

Related: odoo/odoo#138748
Signed-off-by: Romain Derie (rde) <rde@odoo.com>

theme_notes/views/snippets/s_parallax.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
 
-<template id="configurator_s_parallax" inherit_id="website.configurator_s_parallax">
+<template id="s_parallax" inherit_id="website.s_parallax">
     <!-- Shape option -->
     <xpath expr="//section" position="attributes">
         <attribute name="data-oe-shape-data">{"shape":"web_editor/Rainy/08_001","flip":[]}</attribute>