support USDT-ERC20 and USDT-TRC20

[codacy-production[bot]]

Coverage summary from Codacy

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Coverage variation	Diff coverage
:white_check_mark: +0.03%	:white_check_mark: 54.55%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (6730d023d614fc0fcbda79b6846df24d325b6806) | 41403 | 4748 | 11.47% | | | Head commit (3b0e985cb89140de3ad9eea1703de92b667fd658) | 41422 (+19) | 4764 (+16) | 11.50% (**+0.03%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1388) | 22 | 12 | **54.55%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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[shortwavesurfer2009]

Wouldnt DAI be better since it cant be frozen? Obviously the USDC, USDT, etc backing of DAI could be frozen by those companies but to the best of my understanding DAI is unfreezable. With that said, I know they tried to rebrand to sky and launch a new contract that would allow freezing, but to my knowledge, the community rejected that.

[woodser]

DAI can potentially be supported in a future PR.

[shortwavesurfer2009]

How will this show in the views? Personally i think Trocador has the right idea by doing coin (network). As an example "USDT (Ethereum)" or "USDC (Polygon)". That way you prevent yourself from using acronyms that some people might not understand such as "ERC20"

[woodser]

Currently it's using the display name "Tether USD (ERC20)".