Make TinyMCE Formatting Optional

[jmbarne3]

Description
Currently, the TinyMCE setting for the Athena-Shortcodes-Plugin is forced to true within this theme. Please, update the logic so that this setting it turned on by default on theme activation, but is not subsequently forced to true, effectively allowing the setting to be set to false.

Why it's Important
There may be instances where users want the TinyMCE to be disabled, so that their child theme or other plugins can handle that initialization and logic. We should allow for this customization.

Possible Implementation
Insert logic on activation to set this setting to true and remove the block of code linked to above.

Research
We need to evaluate the consequences of this setting being turned off for the theme. There may be unintended consequences to the TinyMCE formats not being applied.