Address review feedback on composer updates

- Default INERTIA_SSR_ENABLED to false to match .env.example, .env.ci and
  .env.production, so existing setups keep the previous behaviour.
- Stop tracking the published Filament assets under /public/fonts/filament and
  add them to .gitignore, as recommended by the Filament docs. They are
  regenerated by filament:assets via the filament:upgrade post-autoload-dump
  hook. /public/css and /public/js are already ignored.
- Drop the now dead theme.css filter from the Vite asset list in app.blade.php,
  since the custom Filament theme was removed along with viteTheme().

public/fonts/filament/filament/inter/index.css

@@ -1 +0,0 @@
-@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-cyrillic-ext-wght-normal-SP7Z6XGK.woff2") format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-cyrillic-wght-normal-DR6K5BQD.woff2") format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-greek-ext-wght-normal-A2J6H3EX.woff2") format("woff2-variations");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-greek-wght-normal-ZABHMKQG.woff2") format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-vietnamese-wght-normal-VWEHJHBA.woff2") format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-latin-ext-wght-normal-ZIT2UBIY.woff2") format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url("./inter-latin-wght-normal-DIHYUR35.woff2") format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}