website: clarify behavior and version support for remote backend (#20739)
website: clarify behavior and version support for remote backend (#20739)

* docs: elaborate on supported remote backend versions

This PR adds a few lines to the docs to indicate which commands are
supported by what version of the remote backend and it makes a
recommendation about which version to use.

* Clarify remote state storage w/ TFE [skip ci]

Specifically, that this is the backend to use with remote state (all
tiers) and Free-Tier vs. Enterprise tiers differ in remote operations

* website: Arrange remote backend info differently

gechr/terraform,gechr/terraform,rnaveiras/terraform,ewbankkit/terraform,pdecat/terraform,luis-silva/terraform,tommynsong/terraform,gechr/terraform,hashicorp/terraform,pdecat/terraform,pdecat/terraform,drebes/terraform,drebes/terraform,heimweh/terraform,apparentlymart/terraform,hashicorp/terraform,heimweh/terraform,drebes/terraform,pryorda/terraform,rnaveiras/terraform,luis-silva/terraform,tommynsong/terraform,tommynsong/terraform,brandontosch/terraform,nlamirault/terraform,pryorda/terraform,pradeepbhadani/terraform,heimweh/terraform,luis-silva/terraform,ewbankkit/terraform,VladRassokhin/terraform,luis-silva/terraform,VladRassokhin/terraform,pradeepbhadani/terraform,pradeepbhadani/terraform,apparentlymart/terraform,VladRassokhin/terraform,nlamirault/terraform,ewbankkit/terraform,nlamirault/terraform,drebes/terraform,VladRassokhin/terraform,hashicorp/terraform,apparentlymart/terraform,apparentlymart/terraform,heimweh/terraform,brandontosch/terraform,apparentlymart/terraform,brandontosch/terraform,ewbankkit/terraform,heimweh/terraform,pryorda/terraform,rnaveiras/terraform,brandontosch/terraform,pdecat/terraform,brandontosch/terraform