Description:
I would highly recommend to extend functionality “select template”
to more easy find and install templates from web.
This is important in the first impression for first users.

I was teaching kids, who know M$ before, and it was quite offten on first LibreOffice run “What, here are so little templates available :(”

Steps to Reproduce:
Writer,Impress,Calc

1. File
2. Manage templates
3. Templates manager

or in Impress on fresh install, every time Impress is opened.

Actual Results:
Only buildin templates

If you click in that dialog "Extensions" it opens all extensions from all LibreOffice programms not only templates for example Impress.
So first user thinks this is not the window for aditional templates and closes it.
If in dealog "Extensions" you try to type some template on the web isn't able to find many off them. (In Impress only those taged "Presentations"(Tags[]=86) and not "Impress"(Tags[]=48)

Expected Results:
Build in templates & easy option to search/install online templates:

Impress(Impress): https://extensions.libreoffice.org/?Tags%5B%5D=43&Tags%5B%5D=118
Impress(Presentations): https://extensions.libreoffice.org/?Tags%5B1%5D=86&Tags%5B0%5D=118
Writer: https://extensions.libreoffice.org/?Tags%5B%5D=44&Tags%5B%5D=118
Calc: https://extensions.libreoffice.org/?Tags%5B%5D=48&Tags%5B%5D=118



Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Version: 7.1.0.3 (x64) / LibreOffice Community
Build ID: f6099ecf3d29644b5008cc8f48f42f4a40986e4c
CPU threads: 8; OS: Windows 10.0 Build 18363; UI render: Skia/Raster; VCL: win
Locale: sl-SI (sl_SI); UI: en-US
Calc: threaded