Typescript-ts-mode and tsx-ts-mode does not use the "standardized" features and fontification levels requested by Stefan/Eli.

Major inconsistencies:

* highlighting ALL variables/properties, not just declarations
* highlight call-expressions on syntax-highlightingh-level 3 (should be on 4, using "function"-feature)
* no syntax-highlighting for method-names inside interfaces.

Attached is a patch which fixes these 3 issues and makes it much more consistent with csharp-ts-mode.

Theo: Could you take this for a test-drive and see if you see any issues?

Yuan: Can we get this installed on Emacs-29 branch or is it too late now? :)

--

In GNU Emacs 29.0.60 (build 7, x86_64-pc-linux-gnu, GTK+ Version
 3.24.34, cairo version 1.16.0) of 2023-01-01 built on ThinkPad-T14s
Repository revision: f12f72b0e09c7a45098955c1304499963a5eb9a7
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12201003
System Description: Ubuntu 22.10

Configured using:
 'configure --with-json --with-tree-sitter'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
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Important settings:
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  value of $LC_NUMERIC: nb_NO.UTF-8
  value of $LC_TIME: nb_NO.UTF-8
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Load-path shadows:
/home/jostein/.emacs.d/elpa/transient-20221202.1727/transient hides /home/jostein/build/emacs/lisp/transient

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