Fix : Tree generation for vscode

[abhi11verma]

Linked issue/ticket

Description

Tree generation was failing after file selection, This change modifies the way tree is generated instead of selecting the file, now the tree generation is done using the current open file. Start Tree is now named as View Tree

Reproduction steps

Checklist

• [ ] I've followed the Contributing guidelines
• [x] I've titled my PR according to the Conventional Commits spec
• [ ] I've added tests that fail without this PR but pass with it
• [x] I've linted, tested, and commented my code
• [ ] I've updated documentation (if appropriate)