Reintroduce "Remove ts compiler (#307)"

[d-gubert]

What? ⛵

Removing the compilation process for the apps. From this point on, we're expecting the apps package to contain their compiled versions already.

This is just part of the project - most of the work will be done on other packages.

Rocket.Chat PR: RocketChat/Rocket.Chat#18687

Why? 🤔

By doing this we achieve:

• A smaller dependency tree for the package, since we will not require the typescript package anymore.
• A smaller memory footprint in the Rocket.Chat server, as we will not load typescript in runtime anymore.
• A smaller surface for compilation errors to happen when updating the Apps-Engine version in a running server.
• A shorter start-up time for the Rocket.Chat server, as it will not need to compile all installed apps anymore.
• A more flexible development experience, not tied to the typescript version we ship with the Apps-Engine.

Links 🌎

PS 👀

[codecov]

Codecov Report

Merging #317 into alpha will increase coverage by 1.34%.
The diff coverage is 27.58%.

@@            Coverage Diff             @@
##            alpha     #317      +/-   ##
==========================================
+ Coverage   50.69%   52.04%   +1.34%     
==========================================
  Files          75       75              
  Lines        2858     2717     -141     
  Branches      436      405      -31     
==========================================
- Hits         1449     1414      -35     
+ Misses       1409     1303     -106     

Impacted Files	Coverage Δ
src/server/AppManager.ts	14.78% <0.00%> (+0.39%)	⬆️
src/server/compiler/AppFabricationFulfillment.ts	54.83% <ø> (-6.28%)	⬇️
src/server/misc/Utilities.ts	44.18% <0.00%> (-4.66%)	⬇️
src/server/compiler/AppPackageParser.ts	23.37% <16.66%> (+1.58%)	⬆️
src/server/compiler/AppCompiler.ts	33.33% <75.00%> (+7.29%)	⬆️

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[shiqimei]

LGTM!