[FIX] web_timeline: Redraw issues with initial mode

This commit fixes redraw issues when setting a `mode` attribute in the
`timeline` view tag.

This mode specifies a default scale one would want to set; same as when
clicking on Day/Week/Month buttons at the top of the view.

Initial rendering had issues here because data was loaded too soon,
before the timeline component was rendered/ready. The fix is to load
data into the component only after initial redraw event, called
`changed` (see <https://visjs.github.io/vis-timeline/docs/timeline/#Events>).

There was old code attempting to call `on_scale_xxx_clicked` methods at
load time to simulate clicks on these Day/Week/Month buttons, but these
methods have been renamed so this code is no longer working.

This commit also removes the `current_window` instance variable, not
needed and actually confusing as the timeline component already
maintains its own start/end information (which we can query with
`timeline.getWindow()`).

web_timeline/static/description/index.html

@@ -8,10 +8,11 @@
 
 /*
 :Author: David Goodger (goodger@python.org)
-:Id: $Id: html4css1.css 8954 2022-01-20 10:10:25Z milde $
+:Id: $Id: html4css1.css 9511 2024-01-13 09:50:07Z milde $
 :Copyright: This stylesheet has been placed in the public domain.
 
 Default cascading style sheet for the HTML output of Docutils.
+Despite the name, some widely supported CSS2 features are used.
 
 See https://docutils.sourceforge.io/docs/howto/html-stylesheets.html for how to
 customize this style sheet.
@@ -274,7 +275,7 @@ pre.literal-block, pre.doctest-block, pre.math, pre.code {
   margin-left: 2em ;
   margin-right: 2em }
 
-pre.code .ln { color: grey; } /* line numbers */
+pre.code .ln { color: gray; } /* line numbers */
 pre.code, code { background-color: #eeeeee }
 pre.code .comment, code .comment { color: #5C6576 }
 pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
@@ -300,7 +301,7 @@ span.option {
 span.pre {
   white-space: pre }
 
-span.problematic {
+span.problematic, pre.problematic {
   color: red }
 
 span.section-subtitle {
@@ -366,7 +367,7 @@ ul.auto-toc {
 !! This file is generated by oca-gen-addon-readme !!
 !! changes will be overwritten.                   !!
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-!! source digest: sha256:c8c5da5c7631fad4d64b447787e487826952622707762815d1166990b565fcd0
+!! source digest: sha256:bd504d36989179a1e11223c03dbf38ac45f0a792c6ad15a2786c9283bc64650b
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
 <p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Production/Stable" src="https://img.shields.io/badge/maturity-Production%2FStable-green.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/web/tree/16.0/web_timeline"><img alt="OCA/web" src="https://img.shields.io/badge/github-OCA%2Fweb-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/web-16-0/web-16-0-web_timeline"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/web&amp;target_branch=16.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
 <p>Define a new view displaying events in an interactive visualization chart.</p>
@@ -614,7 +615,9 @@ If you spotted it first, help us to smash it by providing a detailed and welcome
 <div class="section" id="maintainers">
 <h2><a class="toc-backref" href="#toc-entry-8">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
-<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<a class="reference external image-reference" href="https://odoo-community.org">
+<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
+</a>
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>