FIX: render multiline legend items without overlapping (#10532) (#10641)

* FIX: render multiline legend items without overlapping (#10532)

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* CLN: Extract method to fix codeclimate line count

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* CLN: Shift helper methods from class to module scope

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* TST: Add test with fixtures

Co-authored-by: kartik <codebull707@gmail.com>

* FIX: Fix test case for multiline label

Co-authored-by: kartik <codebull707@gmail.com>

* 10532-ENH: Calculate legend item width for multiline labels

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* 10532-TST: use spriteText and non-empty labels for test

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* 10532-FIX: failing test case due to legendItem.text being undefined

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>

* 10532-FIX: Update compression size

Co-authored-by: kartik <codebull707@gmail.com>

Co-authored-by: Nirav Chavda <nmchavda99@gmail.com>