Improve icon rendering accessibility (#31776)

* Switch to rendered svg for Field select decoration instead of SVG mask

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Replace warning.svg with Compound icon

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Replace device kind icons with Compound

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Draw notification badge decoration using SVG rather than CSS masks

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Replace {collapse,expand}-message icons with Compound

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Remove stale icon prefetch

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Render icons in AddExistingToSpaceDialog using SVGs rather than CSS masks

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Render icons in Jitsi landing page using SVGs rather than CSS masks

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Delint

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update snapshots

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update screenshot

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Fix field label

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update snapshots

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Add tests

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Revert icon colour

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

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Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

res/css/views/settings/tabs/room/_SecurityRoomSettingsTab.pcss

@@ -13,4 +13,8 @@ Please see LICENSE files in the repository root for full details.
     display: flex;
     align-items: center;
     column-gap: $spacing-4;
+
+    svg {
+        color: #ff0064; /* Match legacy icon colour until redesign */
+    }
 }