fix: Resolve bash extension causes shell to exit

[ryuma017]

Hi, @siketyan.
I have been using your ghr.
Source code management has become very comfortable. Thank you very much!!!

This PR fixes a small bug that caused the interactive shell to exit when executing commands that fail after installing the bash extension.

$ echo 'eval "$(ghr shell bash)"' >> .bashrc # or other shell config file

$ exec $SHELL -l

$ false # interactive shell exit here

This problem was caused by set -e in resources/shell/ghr.bash, so this line has been removed.
Similarly, set -u has been removed because it may cause problems for some users (as it did for me).

Thank you!

[siketyan]

Thank you!
Looks good to me ✌️

[siketyan]

It will be shipped in v0.2.3.
This bug is not so critical (for the core of ghr), so we are NOT going to publish any hotfix release for this.
The next release will contain some new features.

Stay tuned!

[siketyan]

Correction of the release schedule: This fix has been released in v0.2.3. We have deprecated config.toml files in #31, and removing support in v0.3.0. So we released v0.2.3 as a final release of v0.2, shipped with this bug fix.

Again, thank you for the quick fix @ryuma017 !