spinner breaks output allignment

[realtime-neil]

Describe the bug

The spinner prints to stderr (which is fine) but doesn't print a final newline and flush it to the stream on completion. This results in terminal output like the following:

$ jira issue list --plain --limit 5
⠇ Fetching issues... TYPE	KEY		SUMMARY										STATUS
Task	FOOBAR-13491	Draft an integration showcase 2.0 plan in collaboration with related people	To Do
Task	FOOBAR-13490	Wire push button in parallel to the Wingnut output module board		Closed
Task	FOOBAR-13489	Run solver in Dialog from background thread				Needs Triage
Task	FOOBAR-13488	Update NumericInput component to support inline expressions + units		Needs Triage
Bug	FOOBAR-13487	Thread leak on project load/unload						Needs Triage

Note the final spinner output without the trailing newline has erroneously indented the column headings.

Please provide following details

1. JiraCLI Version:

   (Version="v0.3.1-0.20220124201418-5429cbd9d363", GitCommit="", CommitDate="", GoVersion="go1.17.6", Compiler="gc", Platform="linux/amd64")
   

2. Are you using Jira cloud or on-premise jira server? Also mention the version for on-premise installation.

   cloud
   

3. What operating system are you using? Also mention version.

   Ubuntu 20.04
   

4. What terminal are you using? Also mention version.

   # GNOME Terminal 3.36.2 using VTE 0.60.3 +BIDI +GNUTLS +ICU +SYSTEMD
   

To Reproduce

Steps to reproduce the behavior:

$ jira issue list --plain --limit 5

Expected behavior
Properly aligned column headings.

Screenshots
not applicable

Additional context
not applicable

[ankitpokhrel]

This seems to be working for me with recent changes. @realtime-neil could you please confirm and close the issue? :)

[realtime-neil]

@ankitpokhrel can confirm:

$ go install github.com/ankitpokhrel/jira-cli/cmd/jira@main && jira version && nohup jira issue list --limit=1 --plain >jira-issue-list.errout 2>&1 & wait $! && cat jira-issue-list.errout 
[1] 116053
(Version="v0.3.1-0.20220301183703-3de6791019c8", GitCommit="", CommitDate="", GoVersion="go1.17.7", Compiler="gc", Platform="linux/amd64")
[1]+  Done                    go install github.com/ankitpokhrel/jira-cli/cmd/jira@main && jira version && nohup jira issue list --limit=1 --plain > jira-issue-list.errout 2>&1
nohup: ignoring input
TYPE			KEY		SUMMARY											STATUS
Internal Request	FOOBAR-14590	Want to be able to choose a connection to select between multiple collinear connections	Needs Triage