[ZEPPELIN-6512] Fix typos in variable names and log messages in terminal classes

[ParkGyeongTae]

What is this PR for?

Fix typos in variable/parameter names and log messages across the terminal interpreter classes.
The changes are purely cosmetic — no logic is altered.

• Cann't → Can't in log messages (TerminalManager.java, 4 occurrences)
• Unrecodnized → Unrecognized in log message (TerminalSocket.java)
• allwedOrigin → allowedOrigin for field and parameter names (TerminalThread.java)
• keyPrex → keyPrefix for local variable name (TerminalManager.java)
• nodeId → noteId for parameter name to match actual semantics (TerminalManager.java)

What type of PR is it?

Improvement

Todos

• Fix typos in log messages
• Fix typos in variable/field/parameter names
• Correct semantic naming (nodeId → noteId)

What is the Jira issue?

https://issues.apache.org/jira/browse/ZEPPELIN-6512

How should this be tested?

No logic changes are made. Verify that the terminal interpreter starts and operates normally:

1. Launch Zeppelin with the Shell interpreter.
2. Open a note and run a %sh.terminal paragraph.
3. Confirm the terminal connects and responds without errors.

Questions:

• Does the license files need to update? No
• Is there breaking changes for older versions? No
• Does this needs documentation? No

[devyeony]

LGTM :)