[TS] Missing code completing settings for TypeScript files

### Description

For the basic languages like PHP, HTML, JS, Java, etc. we have options for global code completion and language based specific code completion. We also have this option "Code complettion at all possible situations". So that means, that for JS I can type "a" and it comes up immediately w/o hitting ctrl + space.

This options is unfortunately not available for TS. TS just calls code completion on hitting "." for sub objects but for the rest I need to hit ctrl + space manually.

### Use case/motivation

It should work as for every other languages. Less using ctrl + space.

### Related issues

_No response_

### Are you willing to submit a pull request?

Yes

Start by locating the TypeScript code-completion implementation and the existing setting used by other languages for completion in all possible situations. Compare how TypeScript handles automatic completion with those languages; done means typing in a TypeScript file invokes completion without requiring Ctrl+Space, while preserving completion after a dot.

Written by the indexing model from the issue text.