Refactor view methods in file handlers to accept width and height parameters

[YidingQiu]

Related to Issue #1779 .
Hi, I'm new here, I want to start with something simple starting to contribute to this project.
This update introduces optional width and height parameters to the view_() functions, allowing users to specify the size of the display when viewing images or files. This change enhances the flexibility of the view() function, enabling better control over how the content is rendered.
Now, users can specify the desired display size with the following syntax:

from edsl import FileStore
fs = FileStore(path="/Users/johnhorton/Downloads/things.png")
fs.view(width=100, height=100)  # The width and height are now customizable
fs.view(100)  # Width first