fix: /tmp/element-web-config may already exist preventing the container from...

fix: /tmp/element-web-config may already exist preventing the container from booting up (#29372) (#29377)

* fix: /tmp/element-web-config may already exist preventing the container from booting up

* Update docker/docker-entrypoint.d/18-load-element-modules.sh

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

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Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>
(cherry picked from commit 45497905)

Co-authored-by: Itay Grudev <itay+github.com@grudev.com>