[ImgBot] Optimize images

*Total -- 1,268.13kb -> 1,121.50kb (11.56%)

/js/jtable-noui/themes/lightcolor/bg-thead.png -- 2.75kb -> 0.29kb (89.58%)
/js/jtable-noui/themes/jqueryui/bg-thead.png -- 2.75kb -> 0.29kb (89.58%)
/images/warning.png -- 3.23kb -> 0.83kb (74.22%)
/images/calendar-16.png -- 3.79kb -> 1.40kb (63.01%)
/images/calendar-32.png -- 4.29kb -> 1.80kb (57.99%)
/js/jtable-noui/themes/basic/close.png -- 3.27kb -> 1.92kb (41.34%)
/js/jtable-noui/themes/metro/close.png -- 3.27kb -> 1.92kb (41.34%)
/images/list_metro.png -- 3.10kb -> 1.82kb (41.2%)
/js/jtable-noui/themes/metro/delete.png -- 3.09kb -> 1.83kb (40.7%)
/js/jtable-noui/themes/metro/edit.png -- 3.28kb -> 1.96kb (40.22%)
/screenshot-1.png -- 173.32kb -> 106.03kb (38.82%)
/images/payment_gateways/payconiq/logo.png -- 6.20kb -> 4.14kb (33.24%)
/screenshot-4.png -- 13.29kb -> 9.21kb (30.73%)
/css/jquery-ui-theme-smoothness-1.11.3/images/ui-icons_454545_256x240.png -- 6.83kb -> 4.86kb (28.86%)
/css/jquery-ui-theme-smoothness-1.11.3/images/ui-icons_888888_256x240.png -- 6.83kb -> 4.86kb (28.86%)
/css/jquery-ui-theme-smoothness-1.11.3/images/ui-icons_222222_256x240.png -- 6.76kb -> 4.85kb (28.2%)
/js/jtable-noui/themes/metro/brown/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/darkgray/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/purple/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/red/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/crimson/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/lightgray/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/pink/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/blue/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/green/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/js/jtable-noui/themes/metro/darkorange/loading.gif -- 0.39kb -> 0.30kb (24.01%)
/screenshot-3.png -- 6.06kb -> 4.63kb (23.63%)
/screenshot-2.png -- 41.96kb -> 32.82kb (21.78%)
/images/spinner.gif -- 1.81kb -> 1.43kb (20.77%)
/js/jtable-noui/themes/lightcolor/green/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/js/jtable-noui/themes/lightcolor/gray/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/js/jtable-noui/themes/lightcolor/blue/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/js/jtable-noui/themes/lightcolor/orange/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/js/jtable-noui/themes/lightcolor/red/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/js/jtable-noui/themes/jqueryui/loading.gif -- 0.71kb -> 0.58kb (17.57%)
/dompdf/vendor/dompdf/dompdf/lib/res/broken_image.svg -- 0.57kb -> 0.48kb (16.18%)
/images/x.gif -- 0.05kb -> 0.04kb (15.09%)
/assets/icon-128x128.png -- 13.17kb -> 11.31kb (14.1%)
/payment_gateways/mercadopago/vendor/mercadopago/dx-php/img/demo.svg -- 77.72kb -> 66.80kb (14.05%)
/assets/banner-772x250.png -- 73.29kb -> 63.27kb (13.68%)
/images/reorder.png -- 5.79kb -> 5.47kb (5.46%)
/assets/icon-256x256.png -- 33.71kb -> 33.04kb (1.99%)
/payment_gateways/mercadopago/vendor/mercadopago/dx-php/img/ezgif-2-f98e8701825e.gif -- 750.89kb -> 738.89kb (1.6%)
/css/jquery-ui-theme-smoothness-1.11.3/images/ui-icons_cd0a0a_256x240.png -- 4.44kb -> 4.40kb (0.86%)
/css/jquery-ui-theme-smoothness-1.11.3/images/ui-icons_2e83ff_256x240.png -- 4.44kb -> 4.40kb (0.86%)

Signed-off-by: ImgBotApp <[email protected]>