Merge PR #5803: Backport "MAINT: Fix mumble-build-number.py script"

Merge PR #5401: Backport "BUILD: Remove concept of an RELEASE_ID"

Merge PR #5254: TRANSLATION: Backport translations

Merge PR #5004: TRANSLATION: Translations update from Weblate

Merge PR #4934: FORMAT: Run clang-format 10 on all source files

Merge pull request #4902: FIX(client, markdown): Wrong line break HTM…

…L code

The Markdown code was using </br> instead of the correct <br/>.

This error was introduced in 2da3f0d.

Fixes #4899

Merge pull request #4879: MAINT: Changelog script improvements

This PR concentrates on improvements of the generateChangelog.py script.

Merge PR #4781: FIX/REFAC(shared): Don't pass unneeded values to OSIn…

…fo, rely on the ones it provides, fix "osverbose" not being verbose on macOS

MAINT: Bump version to 1.3.4

Merge PR #4649: BUILD(macOS): Only include ".dylib" files in bundle's…

… "Plugins" directory