* (feat) add rename
* remove tabname if LualineRenameTab is ran without args
* document LualineRenameTab
Co-authored-by: shadmansaleh <13149513+shadmansaleh@users.noreply.github.com>
Previously these options were applied to entire tabs/buffers components.
Now they are applied to specific buffer/tab.
Note: Now icon, color options are no longer applicable to buffers & tabs
component. I can't see how they make sense here. Also cond stil applies
to entire component.
fixes#414