[Feature] Allow Obsidian search function to scan titles (aka summaries) of JIRA tickets

[SebastianMC]

As an user of this amazing obsidian-jira-issue plugin (thanks a lot for creating it!!!) I'd like the JIRA ticket titles (aka summaries) to be included in Obsidian search.

For now they are displayed by the plugin on-the-fly, yet the underlying content of .md notes remains intact and contains only JIRA ticket key(s) and/or JIRA query/queries. In result, the titles of JIRA tickets are invisible to Obsidian search

For my personal use I created a simple solution by introducing a new command to this plugin which performs a cache-dump (key+title pairs) to a local .md file in the vault. This does the job and in result Obsidian search can find text in titles and show it, together with JIRA ticket key.

I've uploaded the solution which I'm using locally to a new branch of my fork of this original repository and opened the PR #118 for an easy overview of the code additions

Below the idea of the format of auto-generated key + titles inventory

Bla bla bla

=== DO NOT MODIFY BELOW THIS LINE - IT WILL BE OVERWRITTEN ===

Key	Summary
AB-1234	A summary of the ticket goes here
XYZ-35423	Summary of the ticket read from JIRA goes here
...	...