Prepared new release, v0.16.0 (#2863)

* bump version number

* changelog generation, first pass

* fixed label mismatches, changelog generation second pass

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* changelog generation, second pass

* changelog generation, third pass

* changelog generation, final pass

* updated i18n files

* update readyForTranslation

* cut down doc render time

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

CITATION.cff

@@ -4,10 +4,10 @@ authors:
   -
     name: "The Manim Community Developers"
 cff-version: "1.2.0"
-date-released: 2022-04-25
+date-released: 2022-07-13
 license: MIT
 message: "We acknowledge the importance of good software to support research, and we note that research becomes more valuable when it is communicated effectively. To demonstrate the value of Manim, we ask that you cite Manim in your work."
 title: Manim – Mathematical Animation Framework
 url: "https://www.manim.community/"
-version: "v0.15.2"
+version: "v0.16.0"
 ...

docs/i18n/gettext/changelog/0.14.0-changelog.pot

@@ -255,7 +255,7 @@ msgid ":pr:`2415`: Removed instructions on using and installing Docker in README
 msgstr ""
 
 #: ../../source/changelog/0.14.0-changelog.rst:114
-msgid ":pr:`2414`: Made improvements to the :doc:`configuration` tutorial"
+msgid ":pr:`2414`: Made improvements to the :doc:`/guides/configuration` tutorial"
 msgstr ""
 
 #: ../../source/changelog/0.14.0-changelog.rst:117