Unused parameters in tm_g_lineplot(): need to specify the package source for g_lineplot()

### What happened?

Getting error messages like "unused parameters in tm_g_lineplot()".

Possibly because:
Loaded both packages: goshawk and tern where both of them have a same function, g_lineplot(). It might call the g_lineplot in goshawk rather than the correct one, in tern.

Could we change line 129 in source code to _tern::g_lineplot()_ to avoid this kind of error (https://github.com/insightsengineering/teal.modules.clinical/blob/main/R/tm_g_lineplot.R)? Feel free to reach out for questions and thank you! :)

### sessionInfo()

_No response_

### Relevant log output

_No response_

### Code of Conduct

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### Contribution Guidelines

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Start with line 129 of R/tm_g_lineplot.R, where g_lineplot() is called, and inspect how the goshawk and tern functions can conflict. The issue is done when the call explicitly selects tern::g_lineplot() and the unused-parameter error is no longer reproduced.

Written by the indexing model from the issue text.