Avoid matching 'undefined' and 'null' for table filter (#7621)
Avoid matching 'undefined' and 'null' for table filter (#7621)

* Avoid matching 'undefined' and 'null' in search

Default filter method updated to avoid matching 'undefined' and 'null' when filtering with data containing null and undefined fields:
https://codepen.io/qmorek/pen/JjXYxgO

* Replace only undefined and null with empty string

* Space added

* Update table-filter.js

Co-authored-by: Razvan Stoenescu <5ced39d27860b435bebb748c5dedb4e40f3b0e82@gmail.com>
quasarframework/quasar,fsgiudice/quasar,pdanpdan/quasar,fsgiudice/quasar,pdanpdan/quasar,rstoenescu/quasar-framework,rstoenescu/quasar-framework,quasarframework/quasar,pdanpdan/quasar,quasarframework/quasar,rstoenescu/quasar-framework,quasarframework/quasar,pdanpdan/quasar,fsgiudice/quasar