[FIX] mail, *: significantly reduce number of useless renders

* = hr_holidays, im_livechat, website_livechat

A huge amount of components where rendered for no reason, notably when typing a
new message (at every key press), which significantly slowed down the interface.

There were 2 causes to this number of renders:
- OWL rendering all children automatically, even if their props didn't change,
  unless `shouldUpdate` is overridden, which is now done.
- `useStore` selectors being way too generous in what they observed

task-2399731

closes odoo/odoo#62703

Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/addons/mail/static/src/components/autocomplete_input/autocomplete_input.js b/addons/mail/static/src/components/autocomplete_input/autocomplete_input.js
index c80bbafc4c7..8059cc3571a 100644
--- a/addons/mail/static/src/components/autocomplete_input/autocomplete_input.js
+++ b/addons/mail/static/src/components/autocomplete_input/autocomplete_input.js
@@ -1,10 +1,17 @@
 odoo.define('mail/static/src/components/autocomplete_input/autocomplete_input.js', function (require) {
 'use strict';
 
+const useShouldUpdateBasedOnProps = require('mail/static/src/component_hooks/use_should_update_based_on_props/use_should_update_based_on_props.js');
+
 const { Component } = owl;
 
 class AutocompleteInput extends Component {
 
+    constructor(...args) {
+        super(...args);
+        useShouldUpdateBasedOnProps();
+    }
+
     mounted() {
         if (this.props.isFocusOnMount) {
             this.el.focus();