Reset filename and logData on file loading error

[coderabbitai]

Description

When a file loading error occurs in the loadFile function in src/stores/logFileStore.ts, the UI state is reset to UNOPENED, but the filename and log data aren't reset to their default values.

Proposed solution

Add the following lines to the error handling block in the loadFile function:

setFileName(LOG_FILE_STORE_DEFAULT.fileName);
setLogData(VIEW_STORE_DEFAULT.logData);

This will ensure the UI is fully reset to its initial state when a file loading error occurs.

Additional context

This issue was identified during PR #293 but was separated to keep that PR focused on its main objective.

Original comment: #293 (comment)