Remove CSS modules (#6017)

CSS modules were used as a first test for performance optimization.

We later found out that Linaria was a better tradeoff.

This PR removes what was implemented in CSS modules and also the CSS
theme file that was created that was overlapping with the TS theme
files.

packages/twenty-ui/src/display/tooltip/OverflowingTextWithTooltip.module.css

@@ -1,20 +0,0 @@
-.main {
-  font-family: inherit;
-  font-size: inherit;
-
-  font-weight: inherit;
-  max-width: 100%;
-  overflow: hidden;
-  text-decoration: inherit;
-
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-.cursor {
-  cursor: pointer;
-}
-
-.large {
-  height: calc(var(--twentycrm-spacing-multiplicator) * 4px);
-}