Data frame viewer don't display `<`

[eitsupi]

Describe the bug
If data frame values contain <, only the character string to the left of < is displayed on the data frame viewer.

To Reproduce
Steps to reproduce the behavior:

1. Run the following code to create a data frame.

df <- data.frame(
    A = c("aa", "a<a>", "a<a", "aa>", "a<a<a", "a>a>a"),
    B = c("bb", "b<b>", "bb>", "b<b", "b>b>b", "b<b<b")
)

2. Display df in the Data frame viewer (View(df))

Screenshots

Environment:

• OS: Windows + Linux Container (DockerDesktop)
• VSCode Version: 1.55.1
• R Version: 4.0.4
• vscode-R version: 1.6.5

[eitsupi]

Fixed by #708