Import parameters not documented

**Issue description:**
This page seems to be where `import` parameters are documented. However some are not documented:
* Size Limit
* Stream
* Edit: The Presets are not documented either.
* Edit2: There doesn't seem to be any discussion of the different "Import As" types. I.e., Bitmap, Image, Texture, Texture3D, TextureArray, TextureAtlas

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Also, the `Detect 3D` section has a few grammatical anomalies:
> This option makes Godot be aware of when a texture (which is imported for 2D as default) is used in 3D. If this happens, setting are changed so the texture flags are friendlier to 3D (mipmaps, filter and repeat become enabled and compression is changed to VRAM). Texture is also reimported automatically.

Also in the editor none of the parameters have tooltips.

**URL to the documentation page (if already existing):**
https://docs.godotengine.org/en/stable/getting_started/workflow/assets/importing_images.html