docs: Remove enableGitInfo — Heroku buildpack strips .git from build env

docs: Fix sitemap baseURL and add SEO metadata

docs: Replace screenshots with updated versions

docs: Update docs site with v1.2.0 changelog and themes feature page

docs: Backfill CHANGELOG.md with v1.0.0, v1.1.0, and v1.2.0 release notes

Merge branch 'master' of ../../../ccmux into feature/show-hidden-files

Added logic to show hidden files in text editor.

Merge branch 'master' of ../../../ccmux into feature/theme-change

FEATURE: Added support for themes.

Merge branch 'master' of ../../../ccmux into feature/movable-panes

FEATURE: Added ability to move around the tab panes.

FEATURE: Added ability to delete features/branches so they go to trash first.

Added commands for easier release.

Added ability to not delete features/branches. Instead they go to trash.

Added logic to rename the terminal panes.