Refactored function names in R/ipr2viz.R

[teddyCodex]

Description

Refactored specified function names in R/ipr2viz.R based on issue #7

Original	Modified	User Facing
theme_genes2	themeGenes2	✅
find_top_acc	getTopAccByLinDomArch	✅
ipr2viz	plotIPR2Viz	✅
ipr2viz_web	plotIPR2VizWeb	✅

Fixes issue #46

What kind of change(s) are included?

• Feature (adds or updates new capabilities)
• Bug fix (fixes an issue).
• Enhancement (adds functionality).
• Breaking change (these changes would cause existing functionality to not work as expected).

Checklist

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• I have read and followed the CONTRIBUTING.md guidelines.
• I have searched for existing content to ensure this is not a duplicate.
• I have performed a self-review of these additions (including spelling, grammar, and related).
• I have added comments to my code to help provide understanding.
• I have added a test which covers the code changes found within this PR.
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[the-mayer]

Looks good, just rebased to incorporate additional PRs, and made an adjustment to .Rd names. Thanks, @teddyCodex !