feat: Update en translations (#2)

* feat: generate en.po from Poedit 3.4.2

* feat: modify headers of en.po

* feat: translate en.po with 3 PDFs by PingTKP

* feat: more translated string or don't need to translate

* fix: remove extra space

* feat: merge part of translation by sjfhsjfh

* fix: quotation mark & header & fuzzy

* feat: add more shader translation

* fix: uniform use of period

* feat: PingTKP updated translations

* feat: Respack, Chart feature, Built-in shaders, some UML expression

* feat: Video unlock, UML Operator

* fix(en): typos

* fix(en): other minor changes

* feat(en): match latest TeamFlos branch

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Co-authored-by: PingTKP <[email protected]>